polyfills.js

(window["webpackJsonp"] = window["webpackJsonp"] || []).push([["polyfills"],{

/***/ "./node_modules/@angular-devkit/build-angular/src/utils/empty.js":
/*!***********************************************************************!*\
  !*** ./node_modules/@angular-devkit/build-angular/src/utils/empty.js ***!
  \***********************************************************************/
/*! no static exports found */
/***/ (function(module, exports) {



/***/ }),

/***/ "./node_modules/classlist.js/classList.js":
/*!************************************************!*\
  !*** ./node_modules/classlist.js/classList.js ***!
  \************************************************/
/*! no static exports found */
/***/ (function(module, exports) {

/*
 * classList.js: Cross-browser full element.classList implementation.
 * 1.1.20150312
 *
 * By Eli Grey, http://eligrey.com
 * License: Dedicated to the public domain.
 *   See https://github.com/eligrey/classList.js/blob/master/LICENSE.md
 */

/*global self, document, DOMException */

/*! @source http://purl.eligrey.com/github/classList.js/blob/master/classList.js */
if ("document" in self) {
  // Full polyfill for browsers with no classList support
  // Including IE < Edge missing SVGElement.classList
  if (!("classList" in document.createElement("_")) || document.createElementNS && !("classList" in document.createElementNS("http://www.w3.org/2000/svg", "g"))) {
    (function (view) {
      "use strict";

      if (!('Element' in view)) return;

      var classListProp = "classList",
          protoProp = "prototype",
          elemCtrProto = view.Element[protoProp],
          objCtr = Object,
          strTrim = String[protoProp].trim || function () {
        return this.replace(/^\s+|\s+$/g, "");
      },
          arrIndexOf = Array[protoProp].indexOf || function (item) {
        var i = 0,
            len = this.length;

        for (; i < len; i++) {
          if (i in this && this[i] === item) {
            return i;
          }
        }

        return -1;
      } // Vendors: please allow content code to instantiate DOMExceptions
      ,
          DOMEx = function DOMEx(type, message) {
        this.name = type;
        this.code = DOMException[type];
        this.message = message;
      },
          checkTokenAndGetIndex = function checkTokenAndGetIndex(classList, token) {
        if (token === "") {
          throw new DOMEx("SYNTAX_ERR", "An invalid or illegal string was specified");
        }

        if (/\s/.test(token)) {
          throw new DOMEx("INVALID_CHARACTER_ERR", "String contains an invalid character");
        }

        return arrIndexOf.call(classList, token);
      },
          ClassList = function ClassList(elem) {
        var trimmedClasses = strTrim.call(elem.getAttribute("class") || ""),
            classes = trimmedClasses ? trimmedClasses.split(/\s+/) : [],
            i = 0,
            len = classes.length;

        for (; i < len; i++) {
          this.push(classes[i]);
        }

        this._updateClassName = function () {
          elem.setAttribute("class", this.toString());
        };
      },
          classListProto = ClassList[protoProp] = [],
          classListGetter = function classListGetter() {
        return new ClassList(this);
      }; // Most DOMException implementations don't allow calling DOMException's toString()
      // on non-DOMExceptions. Error's toString() is sufficient here.


      DOMEx[protoProp] = Error[protoProp];

      classListProto.item = function (i) {
        return this[i] || null;
      };

      classListProto.contains = function (token) {
        token += "";
        return checkTokenAndGetIndex(this, token) !== -1;
      };

      classListProto.add = function () {
        var tokens = arguments,
            i = 0,
            l = tokens.length,
            token,
            updated = false;

        do {
          token = tokens[i] + "";

          if (checkTokenAndGetIndex(this, token) === -1) {
            this.push(token);
            updated = true;
          }
        } while (++i < l);

        if (updated) {
          this._updateClassName();
        }
      };

      classListProto.remove = function () {
        var tokens = arguments,
            i = 0,
            l = tokens.length,
            token,
            updated = false,
            index;

        do {
          token = tokens[i] + "";
          index = checkTokenAndGetIndex(this, token);

          while (index !== -1) {
            this.splice(index, 1);
            updated = true;
            index = checkTokenAndGetIndex(this, token);
          }
        } while (++i < l);

        if (updated) {
          this._updateClassName();
        }
      };

      classListProto.toggle = function (token, force) {
        token += "";
        var result = this.contains(token),
            method = result ? force !== true && "remove" : force !== false && "add";

        if (method) {
          this[method](token);
        }

        if (force === true || force === false) {
          return force;
        } else {
          return !result;
        }
      };

      classListProto.toString = function () {
        return this.join(" ");
      };

      if (objCtr.defineProperty) {
        var classListPropDesc = {
          get: classListGetter,
          enumerable: true,
          configurable: true
        };

        try {
          objCtr.defineProperty(elemCtrProto, classListProp, classListPropDesc);
        } catch (ex) {
          // IE 8 doesn't support enumerable:true
          if (ex.number === -0x7FF5EC54) {
            classListPropDesc.enumerable = false;
            objCtr.defineProperty(elemCtrProto, classListProp, classListPropDesc);
          }
        }
      } else if (objCtr[protoProp].__defineGetter__) {
        elemCtrProto.__defineGetter__(classListProp, classListGetter);
      }
    })(self);
  } else {
    // There is full or partial native classList support, so just check if we need
    // to normalize the add/remove and toggle APIs.
    (function () {
      "use strict";

      var testElement = document.createElement("_");
      testElement.classList.add("c1", "c2"); // Polyfill for IE 10/11 and Firefox <26, where classList.add and
      // classList.remove exist but support only one argument at a time.

      if (!testElement.classList.contains("c2")) {
        var createMethod = function createMethod(method) {
          var original = DOMTokenList.prototype[method];

          DOMTokenList.prototype[method] = function (token) {
            var i,
                len = arguments.length;

            for (i = 0; i < len; i++) {
              token = arguments[i];
              original.call(this, token);
            }
          };
        };

        createMethod('add');
        createMethod('remove');
      }

      testElement.classList.toggle("c3", false); // Polyfill for IE 10 and Firefox <24, where classList.toggle does not
      // support the second argument.

      if (testElement.classList.contains("c3")) {
        var _toggle = DOMTokenList.prototype.toggle;

        DOMTokenList.prototype.toggle = function (token, force) {
          if (1 in arguments && !this.contains(token) === !force) {
            return force;
          } else {
            return _toggle.call(this, token);
          }
        };
      }

      testElement = null;
    })();
  }
}

/***/ }),

/***/ "./node_modules/zone.js/dist/zone.js":
/*!*******************************************!*\
  !*** ./node_modules/zone.js/dist/zone.js ***!
  \*******************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_RESULT__;/**
* @license Angular v9.1.0-next.4+61.sha-e552591.with-local-changes
* (c) 2010-2020 Google LLC. https://angular.io/
* License: MIT
*/
(function (factory) {
   true ? !(__WEBPACK_AMD_DEFINE_FACTORY__ = (factory),
				__WEBPACK_AMD_DEFINE_RESULT__ = (typeof __WEBPACK_AMD_DEFINE_FACTORY__ === 'function' ?
				(__WEBPACK_AMD_DEFINE_FACTORY__.call(exports, __webpack_require__, exports, module)) :
				__WEBPACK_AMD_DEFINE_FACTORY__),
				__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__)) : undefined;
})(function () {
  'use strict';
  /**
   * @license
   * Copyright Google Inc. All Rights Reserved.
   *
   * Use of this source code is governed by an MIT-style license that can be
   * found in the LICENSE file at https://angular.io/license
   */

  var Zone$1 = function (global) {
    var performance = global['performance'];

    function mark(name) {
      performance && performance['mark'] && performance['mark'](name);
    }

    function performanceMeasure(name, label) {
      performance && performance['measure'] && performance['measure'](name, label);
    }

    mark('Zone'); // Initialize before it's accessed below.
    // __Zone_symbol_prefix global can be used to override the default zone
    // symbol prefix with a custom one if needed.

    var symbolPrefix = global['__Zone_symbol_prefix'] || '__zone_symbol__';

    function __symbol__(name) {
      return symbolPrefix + name;
    }

    var checkDuplicate = global[__symbol__('forceDuplicateZoneCheck')] === true;

    if (global['Zone']) {
      // if global['Zone'] already exists (maybe zone.js was already loaded or
      // some other lib also registered a global object named Zone), we may need
      // to throw an error, but sometimes user may not want this error.
      // For example,
      // we have two web pages, page1 includes zone.js, page2 doesn't.
      // and the 1st time user load page1 and page2, everything work fine,
      // but when user load page2 again, error occurs because global['Zone'] already exists.
      // so we add a flag to let user choose whether to throw this error or not.
      // By default, if existing Zone is from zone.js, we will not throw the error.
      if (checkDuplicate || typeof global['Zone'].__symbol__ !== 'function') {
        throw new Error('Zone already loaded.');
      } else {
        return global['Zone'];
      }
    }

    var Zone =
    /** @class */
    function () {
      function Zone(parent, zoneSpec) {
        this._parent = parent;
        this._name = zoneSpec ? zoneSpec.name || 'unnamed' : '<root>';
        this._properties = zoneSpec && zoneSpec.properties || {};
        this._zoneDelegate = new ZoneDelegate(this, this._parent && this._parent._zoneDelegate, zoneSpec);
      }

      Zone.assertZonePatched = function () {
        if (global['Promise'] !== patches['ZoneAwarePromise']) {
          throw new Error('Zone.js has detected that ZoneAwarePromise `(window|global).Promise` ' + 'has been overwritten.\n' + 'Most likely cause is that a Promise polyfill has been loaded ' + 'after Zone.js (Polyfilling Promise api is not necessary when zone.js is loaded. ' + 'If you must load one, do so before loading zone.js.)');
        }
      };

      Object.defineProperty(Zone, "root", {
        get: function get() {
          var zone = Zone.current;

          while (zone.parent) {
            zone = zone.parent;
          }

          return zone;
        },
        enumerable: true,
        configurable: true
      });
      Object.defineProperty(Zone, "current", {
        get: function get() {
          return _currentZoneFrame.zone;
        },
        enumerable: true,
        configurable: true
      });
      Object.defineProperty(Zone, "currentTask", {
        get: function get() {
          return _currentTask;
        },
        enumerable: true,
        configurable: true
      }); // tslint:disable-next-line:require-internal-with-underscore

      Zone.__load_patch = function (name, fn) {
        if (patches.hasOwnProperty(name)) {
          if (checkDuplicate) {
            throw Error('Already loaded patch: ' + name);
          }
        } else if (!global['__Zone_disable_' + name]) {
          var perfName = 'Zone:' + name;
          mark(perfName);
          patches[name] = fn(global, Zone, _api);
          performanceMeasure(perfName, perfName);
        }
      };

      Object.defineProperty(Zone.prototype, "parent", {
        get: function get() {
          return this._parent;
        },
        enumerable: true,
        configurable: true
      });
      Object.defineProperty(Zone.prototype, "name", {
        get: function get() {
          return this._name;
        },
        enumerable: true,
        configurable: true
      });

      Zone.prototype.get = function (key) {
        var zone = this.getZoneWith(key);
        if (zone) return zone._properties[key];
      };

      Zone.prototype.getZoneWith = function (key) {
        var current = this;

        while (current) {
          if (current._properties.hasOwnProperty(key)) {
            return current;
          }

          current = current._parent;
        }

        return null;
      };

      Zone.prototype.fork = function (zoneSpec) {
        if (!zoneSpec) throw new Error('ZoneSpec required!');
        return this._zoneDelegate.fork(this, zoneSpec);
      };

      Zone.prototype.wrap = function (callback, source) {
        if (typeof callback !== 'function') {
          throw new Error('Expecting function got: ' + callback);
        }

        var _callback = this._zoneDelegate.intercept(this, callback, source);

        var zone = this;
        return function () {
          return zone.runGuarded(_callback, this, arguments, source);
        };
      };

      Zone.prototype.run = function (callback, applyThis, applyArgs, source) {
        _currentZoneFrame = {
          parent: _currentZoneFrame,
          zone: this
        };

        try {
          return this._zoneDelegate.invoke(this, callback, applyThis, applyArgs, source);
        } finally {
          _currentZoneFrame = _currentZoneFrame.parent;
        }
      };

      Zone.prototype.runGuarded = function (callback, applyThis, applyArgs, source) {
        if (applyThis === void 0) {
          applyThis = null;
        }

        _currentZoneFrame = {
          parent: _currentZoneFrame,
          zone: this
        };

        try {
          try {
            return this._zoneDelegate.invoke(this, callback, applyThis, applyArgs, source);
          } catch (error) {
            if (this._zoneDelegate.handleError(this, error)) {
              throw error;
            }
          }
        } finally {
          _currentZoneFrame = _currentZoneFrame.parent;
        }
      };

      Zone.prototype.runTask = function (task, applyThis, applyArgs) {
        if (task.zone != this) {
          throw new Error('A task can only be run in the zone of creation! (Creation: ' + (task.zone || NO_ZONE).name + '; Execution: ' + this.name + ')');
        } // https://github.com/angular/zone.js/issues/778, sometimes eventTask
        // will run in notScheduled(canceled) state, we should not try to
        // run such kind of task but just return


        if (task.state === notScheduled && (task.type === eventTask || task.type === macroTask)) {
          return;
        }

        var reEntryGuard = task.state != running;
        reEntryGuard && task._transitionTo(running, scheduled);
        task.runCount++;
        var previousTask = _currentTask;
        _currentTask = task;
        _currentZoneFrame = {
          parent: _currentZoneFrame,
          zone: this
        };

        try {
          if (task.type == macroTask && task.data && !task.data.isPeriodic) {
            task.cancelFn = undefined;
          }

          try {
            return this._zoneDelegate.invokeTask(this, task, applyThis, applyArgs);
          } catch (error) {
            if (this._zoneDelegate.handleError(this, error)) {
              throw error;
            }
          }
        } finally {
          // if the task's state is notScheduled or unknown, then it has already been cancelled
          // we should not reset the state to scheduled
          if (task.state !== notScheduled && task.state !== unknown) {
            if (task.type == eventTask || task.data && task.data.isPeriodic) {
              reEntryGuard && task._transitionTo(scheduled, running);
            } else {
              task.runCount = 0;

              this._updateTaskCount(task, -1);

              reEntryGuard && task._transitionTo(notScheduled, running, notScheduled);
            }
          }

          _currentZoneFrame = _currentZoneFrame.parent;
          _currentTask = previousTask;
        }
      };

      Zone.prototype.scheduleTask = function (task) {
        if (task.zone && task.zone !== this) {
          // check if the task was rescheduled, the newZone
          // should not be the children of the original zone
          var newZone = this;

          while (newZone) {
            if (newZone === task.zone) {
              throw Error("can not reschedule task to " + this.name + " which is descendants of the original zone " + task.zone.name);
            }

            newZone = newZone.parent;
          }
        }

        task._transitionTo(scheduling, notScheduled);

        var zoneDelegates = [];
        task._zoneDelegates = zoneDelegates;
        task._zone = this;

        try {
          task = this._zoneDelegate.scheduleTask(this, task);
        } catch (err) {
          // should set task's state to unknown when scheduleTask throw error
          // because the err may from reschedule, so the fromState maybe notScheduled
          task._transitionTo(unknown, scheduling, notScheduled); // TODO: @JiaLiPassion, should we check the result from handleError?


          this._zoneDelegate.handleError(this, err);

          throw err;
        }

        if (task._zoneDelegates === zoneDelegates) {
          // we have to check because internally the delegate can reschedule the task.
          this._updateTaskCount(task, 1);
        }

        if (task.state == scheduling) {
          task._transitionTo(scheduled, scheduling);
        }

        return task;
      };

      Zone.prototype.scheduleMicroTask = function (source, callback, data, customSchedule) {
        return this.scheduleTask(new ZoneTask(microTask, source, callback, data, customSchedule, undefined));
      };

      Zone.prototype.scheduleMacroTask = function (source, callback, data, customSchedule, customCancel) {
        return this.scheduleTask(new ZoneTask(macroTask, source, callback, data, customSchedule, customCancel));
      };

      Zone.prototype.scheduleEventTask = function (source, callback, data, customSchedule, customCancel) {
        return this.scheduleTask(new ZoneTask(eventTask, source, callback, data, customSchedule, customCancel));
      };

      Zone.prototype.cancelTask = function (task) {
        if (task.zone != this) throw new Error('A task can only be cancelled in the zone of creation! (Creation: ' + (task.zone || NO_ZONE).name + '; Execution: ' + this.name + ')');

        task._transitionTo(canceling, scheduled, running);

        try {
          this._zoneDelegate.cancelTask(this, task);
        } catch (err) {
          // if error occurs when cancelTask, transit the state to unknown
          task._transitionTo(unknown, canceling);

          this._zoneDelegate.handleError(this, err);

          throw err;
        }

        this._updateTaskCount(task, -1);

        task._transitionTo(notScheduled, canceling);

        task.runCount = 0;
        return task;
      };

      Zone.prototype._updateTaskCount = function (task, count) {
        var zoneDelegates = task._zoneDelegates;

        if (count == -1) {
          task._zoneDelegates = null;
        }

        for (var i = 0; i < zoneDelegates.length; i++) {
          zoneDelegates[i]._updateTaskCount(task.type, count);
        }
      };

      return Zone;
    }(); // tslint:disable-next-line:require-internal-with-underscore


    Zone.__symbol__ = __symbol__;
    var DELEGATE_ZS = {
      name: '',
      onHasTask: function onHasTask(delegate, _, target, hasTaskState) {
        return delegate.hasTask(target, hasTaskState);
      },
      onScheduleTask: function onScheduleTask(delegate, _, target, task) {
        return delegate.scheduleTask(target, task);
      },
      onInvokeTask: function onInvokeTask(delegate, _, target, task, applyThis, applyArgs) {
        return delegate.invokeTask(target, task, applyThis, applyArgs);
      },
      onCancelTask: function onCancelTask(delegate, _, target, task) {
        return delegate.cancelTask(target, task);
      }
    };

    var ZoneDelegate =
    /** @class */
    function () {
      function ZoneDelegate(zone, parentDelegate, zoneSpec) {
        this._taskCounts = {
          'microTask': 0,
          'macroTask': 0,
          'eventTask': 0
        };
        this.zone = zone;
        this._parentDelegate = parentDelegate;
        this._forkZS = zoneSpec && (zoneSpec && zoneSpec.onFork ? zoneSpec : parentDelegate._forkZS);
        this._forkDlgt = zoneSpec && (zoneSpec.onFork ? parentDelegate : parentDelegate._forkDlgt);
        this._forkCurrZone = zoneSpec && (zoneSpec.onFork ? this.zone : parentDelegate._forkCurrZone);
        this._interceptZS = zoneSpec && (zoneSpec.onIntercept ? zoneSpec : parentDelegate._interceptZS);
        this._interceptDlgt = zoneSpec && (zoneSpec.onIntercept ? parentDelegate : parentDelegate._interceptDlgt);
        this._interceptCurrZone = zoneSpec && (zoneSpec.onIntercept ? this.zone : parentDelegate._interceptCurrZone);
        this._invokeZS = zoneSpec && (zoneSpec.onInvoke ? zoneSpec : parentDelegate._invokeZS);
        this._invokeDlgt = zoneSpec && (zoneSpec.onInvoke ? parentDelegate : parentDelegate._invokeDlgt);
        this._invokeCurrZone = zoneSpec && (zoneSpec.onInvoke ? this.zone : parentDelegate._invokeCurrZone);
        this._handleErrorZS = zoneSpec && (zoneSpec.onHandleError ? zoneSpec : parentDelegate._handleErrorZS);
        this._handleErrorDlgt = zoneSpec && (zoneSpec.onHandleError ? parentDelegate : parentDelegate._handleErrorDlgt);
        this._handleErrorCurrZone = zoneSpec && (zoneSpec.onHandleError ? this.zone : parentDelegate._handleErrorCurrZone);
        this._scheduleTaskZS = zoneSpec && (zoneSpec.onScheduleTask ? zoneSpec : parentDelegate._scheduleTaskZS);
        this._scheduleTaskDlgt = zoneSpec && (zoneSpec.onScheduleTask ? parentDelegate : parentDelegate._scheduleTaskDlgt);
        this._scheduleTaskCurrZone = zoneSpec && (zoneSpec.onScheduleTask ? this.zone : parentDelegate._scheduleTaskCurrZone);
        this._invokeTaskZS = zoneSpec && (zoneSpec.onInvokeTask ? zoneSpec : parentDelegate._invokeTaskZS);
        this._invokeTaskDlgt = zoneSpec && (zoneSpec.onInvokeTask ? parentDelegate : parentDelegate._invokeTaskDlgt);
        this._invokeTaskCurrZone = zoneSpec && (zoneSpec.onInvokeTask ? this.zone : parentDelegate._invokeTaskCurrZone);
        this._cancelTaskZS = zoneSpec && (zoneSpec.onCancelTask ? zoneSpec : parentDelegate._cancelTaskZS);
        this._cancelTaskDlgt = zoneSpec && (zoneSpec.onCancelTask ? parentDelegate : parentDelegate._cancelTaskDlgt);
        this._cancelTaskCurrZone = zoneSpec && (zoneSpec.onCancelTask ? this.zone : parentDelegate._cancelTaskCurrZone);
        this._hasTaskZS = null;
        this._hasTaskDlgt = null;
        this._hasTaskDlgtOwner = null;
        this._hasTaskCurrZone = null;
        var zoneSpecHasTask = zoneSpec && zoneSpec.onHasTask;
        var parentHasTask = parentDelegate && parentDelegate._hasTaskZS;

        if (zoneSpecHasTask || parentHasTask) {
          // If we need to report hasTask, than this ZS needs to do ref counting on tasks. In such
          // a case all task related interceptors must go through this ZD. We can't short circuit it.
          this._hasTaskZS = zoneSpecHasTask ? zoneSpec : DELEGATE_ZS;
          this._hasTaskDlgt = parentDelegate;
          this._hasTaskDlgtOwner = this;
          this._hasTaskCurrZone = zone;

          if (!zoneSpec.onScheduleTask) {
            this._scheduleTaskZS = DELEGATE_ZS;
            this._scheduleTaskDlgt = parentDelegate;
            this._scheduleTaskCurrZone = this.zone;
          }

          if (!zoneSpec.onInvokeTask) {
            this._invokeTaskZS = DELEGATE_ZS;
            this._invokeTaskDlgt = parentDelegate;
            this._invokeTaskCurrZone = this.zone;
          }

          if (!zoneSpec.onCancelTask) {
            this._cancelTaskZS = DELEGATE_ZS;
            this._cancelTaskDlgt = parentDelegate;
            this._cancelTaskCurrZone = this.zone;
          }
        }
      }

      ZoneDelegate.prototype.fork = function (targetZone, zoneSpec) {
        return this._forkZS ? this._forkZS.onFork(this._forkDlgt, this.zone, targetZone, zoneSpec) : new Zone(targetZone, zoneSpec);
      };

      ZoneDelegate.prototype.intercept = function (targetZone, callback, source) {
        return this._interceptZS ? this._interceptZS.onIntercept(this._interceptDlgt, this._interceptCurrZone, targetZone, callback, source) : callback;
      };

      ZoneDelegate.prototype.invoke = function (targetZone, callback, applyThis, applyArgs, source) {
        return this._invokeZS ? this._invokeZS.onInvoke(this._invokeDlgt, this._invokeCurrZone, targetZone, callback, applyThis, applyArgs, source) : callback.apply(applyThis, applyArgs);
      };

      ZoneDelegate.prototype.handleError = function (targetZone, error) {
        return this._handleErrorZS ? this._handleErrorZS.onHandleError(this._handleErrorDlgt, this._handleErrorCurrZone, targetZone, error) : true;
      };

      ZoneDelegate.prototype.scheduleTask = function (targetZone, task) {
        var returnTask = task;

        if (this._scheduleTaskZS) {
          if (this._hasTaskZS) {
            returnTask._zoneDelegates.push(this._hasTaskDlgtOwner);
          } // clang-format off


          returnTask = this._scheduleTaskZS.onScheduleTask(this._scheduleTaskDlgt, this._scheduleTaskCurrZone, targetZone, task); // clang-format on

          if (!returnTask) returnTask = task;
        } else {
          if (task.scheduleFn) {
            task.scheduleFn(task);
          } else if (task.type == microTask) {
            scheduleMicroTask(task);
          } else {
            throw new Error('Task is missing scheduleFn.');
          }
        }

        return returnTask;
      };

      ZoneDelegate.prototype.invokeTask = function (targetZone, task, applyThis, applyArgs) {
        return this._invokeTaskZS ? this._invokeTaskZS.onInvokeTask(this._invokeTaskDlgt, this._invokeTaskCurrZone, targetZone, task, applyThis, applyArgs) : task.callback.apply(applyThis, applyArgs);
      };

      ZoneDelegate.prototype.cancelTask = function (targetZone, task) {
        var value;

        if (this._cancelTaskZS) {
          value = this._cancelTaskZS.onCancelTask(this._cancelTaskDlgt, this._cancelTaskCurrZone, targetZone, task);
        } else {
          if (!task.cancelFn) {
            throw Error('Task is not cancelable');
          }

          value = task.cancelFn(task);
        }

        return value;
      };

      ZoneDelegate.prototype.hasTask = function (targetZone, isEmpty) {
        // hasTask should not throw error so other ZoneDelegate
        // can still trigger hasTask callback
        try {
          this._hasTaskZS && this._hasTaskZS.onHasTask(this._hasTaskDlgt, this._hasTaskCurrZone, targetZone, isEmpty);
        } catch (err) {
          this.handleError(targetZone, err);
        }
      }; // tslint:disable-next-line:require-internal-with-underscore


      ZoneDelegate.prototype._updateTaskCount = function (type, count) {
        var counts = this._taskCounts;
        var prev = counts[type];
        var next = counts[type] = prev + count;

        if (next < 0) {
          throw new Error('More tasks executed then were scheduled.');
        }

        if (prev == 0 || next == 0) {
          var isEmpty = {
            microTask: counts['microTask'] > 0,
            macroTask: counts['macroTask'] > 0,
            eventTask: counts['eventTask'] > 0,
            change: type
          };
          this.hasTask(this.zone, isEmpty);
        }
      };

      return ZoneDelegate;
    }();

    var ZoneTask =
    /** @class */
    function () {
      function ZoneTask(type, source, callback, options, scheduleFn, cancelFn) {
        // tslint:disable-next-line:require-internal-with-underscore
        this._zone = null;
        this.runCount = 0; // tslint:disable-next-line:require-internal-with-underscore

        this._zoneDelegates = null; // tslint:disable-next-line:require-internal-with-underscore

        this._state = 'notScheduled';
        this.type = type;
        this.source = source;
        this.data = options;
        this.scheduleFn = scheduleFn;
        this.cancelFn = cancelFn;

        if (!callback) {
          throw new Error('callback is not defined');
        }

        this.callback = callback;
        var self = this; // TODO: @JiaLiPassion options should have interface

        if (type === eventTask && options && options.useG) {
          this.invoke = ZoneTask.invokeTask;
        } else {
          this.invoke = function () {
            return ZoneTask.invokeTask.call(global, self, this, arguments);
          };
        }
      }

      ZoneTask.invokeTask = function (task, target, args) {
        if (!task) {
          task = this;
        }

        _numberOfNestedTaskFrames++;

        try {
          task.runCount++;
          return task.zone.runTask(task, target, args);
        } finally {
          if (_numberOfNestedTaskFrames == 1) {
            drainMicroTaskQueue();
          }

          _numberOfNestedTaskFrames--;
        }
      };

      Object.defineProperty(ZoneTask.prototype, "zone", {
        get: function get() {
          return this._zone;
        },
        enumerable: true,
        configurable: true
      });
      Object.defineProperty(ZoneTask.prototype, "state", {
        get: function get() {
          return this._state;
        },
        enumerable: true,
        configurable: true
      });

      ZoneTask.prototype.cancelScheduleRequest = function () {
        this._transitionTo(notScheduled, scheduling);
      }; // tslint:disable-next-line:require-internal-with-underscore


      ZoneTask.prototype._transitionTo = function (toState, fromState1, fromState2) {
        if (this._state === fromState1 || this._state === fromState2) {
          this._state = toState;

          if (toState == notScheduled) {
            this._zoneDelegates = null;
          }
        } else {
          throw new Error(this.type + " '" + this.source + "': can not transition to '" + toState + "', expecting state '" + fromState1 + "'" + (fromState2 ? ' or \'' + fromState2 + '\'' : '') + ", was '" + this._state + "'.");
        }
      };

      ZoneTask.prototype.toString = function () {
        if (this.data && typeof this.data.handleId !== 'undefined') {
          return this.data.handleId.toString();
        } else {
          return Object.prototype.toString.call(this);
        }
      }; // add toJSON method to prevent cyclic error when
      // call JSON.stringify(zoneTask)


      ZoneTask.prototype.toJSON = function () {
        return {
          type: this.type,
          state: this.state,
          source: this.source,
          zone: this.zone.name,
          runCount: this.runCount
        };
      };

      return ZoneTask;
    }(); //////////////////////////////////////////////////////
    //////////////////////////////////////////////////////
    ///  MICROTASK QUEUE
    //////////////////////////////////////////////////////
    //////////////////////////////////////////////////////


    var symbolSetTimeout = __symbol__('setTimeout');

    var symbolPromise = __symbol__('Promise');

    var symbolThen = __symbol__('then');

    var _microTaskQueue = [];
    var _isDrainingMicrotaskQueue = false;
    var nativeMicroTaskQueuePromise;

    function scheduleMicroTask(task) {
      // if we are not running in any task, and there has not been anything scheduled
      // we must bootstrap the initial task creation by manually scheduling the drain
      if (_numberOfNestedTaskFrames === 0 && _microTaskQueue.length === 0) {
        // We are not running in Task, so we need to kickstart the microtask queue.
        if (!nativeMicroTaskQueuePromise) {
          if (global[symbolPromise]) {
            nativeMicroTaskQueuePromise = global[symbolPromise].resolve(0);
          }
        }

        if (nativeMicroTaskQueuePromise) {
          var nativeThen = nativeMicroTaskQueuePromise[symbolThen];

          if (!nativeThen) {
            // native Promise is not patchable, we need to use `then` directly
            // issue 1078
            nativeThen = nativeMicroTaskQueuePromise['then'];
          }

          nativeThen.call(nativeMicroTaskQueuePromise, drainMicroTaskQueue);
        } else {
          global[symbolSetTimeout](drainMicroTaskQueue, 0);
        }
      }

      task && _microTaskQueue.push(task);
    }

    function drainMicroTaskQueue() {
      if (!_isDrainingMicrotaskQueue) {
        _isDrainingMicrotaskQueue = true;

        while (_microTaskQueue.length) {
          var queue = _microTaskQueue;
          _microTaskQueue = [];

          for (var i = 0; i < queue.length; i++) {
            var task = queue[i];

            try {
              task.zone.runTask(task, null, null);
            } catch (error) {
              _api.onUnhandledError(error);
            }
          }
        }

        _api.microtaskDrainDone();

        _isDrainingMicrotaskQueue = false;
      }
    } //////////////////////////////////////////////////////
    //////////////////////////////////////////////////////
    ///  BOOTSTRAP
    //////////////////////////////////////////////////////
    //////////////////////////////////////////////////////


    var NO_ZONE = {
      name: 'NO ZONE'
    };
    var notScheduled = 'notScheduled',
        scheduling = 'scheduling',
        scheduled = 'scheduled',
        running = 'running',
        canceling = 'canceling',
        unknown = 'unknown';
    var microTask = 'microTask',
        macroTask = 'macroTask',
        eventTask = 'eventTask';
    var patches = {};
    var _api = {
      symbol: __symbol__,
      currentZoneFrame: function currentZoneFrame() {
        return _currentZoneFrame;
      },
      onUnhandledError: noop,
      microtaskDrainDone: noop,
      scheduleMicroTask: scheduleMicroTask,
      showUncaughtError: function showUncaughtError() {
        return !Zone[__symbol__('ignoreConsoleErrorUncaughtError')];
      },
      patchEventTarget: function patchEventTarget() {
        return [];
      },
      patchOnProperties: noop,
      patchMethod: function patchMethod() {
        return noop;
      },
      bindArguments: function bindArguments() {
        return [];
      },
      patchThen: function patchThen() {
        return noop;
      },
      patchMacroTask: function patchMacroTask() {
        return noop;
      },
      setNativePromise: function setNativePromise(NativePromise) {
        // sometimes NativePromise.resolve static function
        // is not ready yet, (such as core-js/es6.promise)
        // so we need to check here.
        if (NativePromise && typeof NativePromise.resolve === 'function') {
          nativeMicroTaskQueuePromise = NativePromise.resolve(0);
        }
      },
      patchEventPrototype: function patchEventPrototype() {
        return noop;
      },
      isIEOrEdge: function isIEOrEdge() {
        return false;
      },
      getGlobalObjects: function getGlobalObjects() {
        return undefined;
      },
      ObjectDefineProperty: function ObjectDefineProperty() {
        return noop;
      },
      ObjectGetOwnPropertyDescriptor: function ObjectGetOwnPropertyDescriptor() {
        return undefined;
      },
      ObjectCreate: function ObjectCreate() {
        return undefined;
      },
      ArraySlice: function ArraySlice() {
        return [];
      },
      patchClass: function patchClass() {
        return noop;
      },
      wrapWithCurrentZone: function wrapWithCurrentZone() {
        return noop;
      },
      filterProperties: function filterProperties() {
        return [];
      },
      attachOriginToPatched: function attachOriginToPatched() {
        return noop;
      },
      _redefineProperty: function _redefineProperty() {
        return noop;
      },
      patchCallbacks: function patchCallbacks() {
        return noop;
      }
    };
    var _currentZoneFrame = {
      parent: null,
      zone: new Zone(null, null)
    };
    var _currentTask = null;
    var _numberOfNestedTaskFrames = 0;

    function noop() {}

    performanceMeasure('Zone', 'Zone');
    return global['Zone'] = Zone;
  }(typeof window !== 'undefined' && window || typeof self !== 'undefined' && self || global);
  /**
   * @license
   * Copyright Google Inc. All Rights Reserved.
   *
   * Use of this source code is governed by an MIT-style license that can be
   * found in the LICENSE file at https://angular.io/license
   */


  Zone.__load_patch('ZoneAwarePromise', function (global, Zone, api) {
    var ObjectGetOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
    var ObjectDefineProperty = Object.defineProperty;

    function readableObjectToString(obj) {
      if (obj && obj.toString === Object.prototype.toString) {
        var className = obj.constructor && obj.constructor.name;
        return (className ? className : '') + ': ' + JSON.stringify(obj);
      }

      return obj ? obj.toString() : Object.prototype.toString.call(obj);
    }

    var __symbol__ = api.symbol;
    var _uncaughtPromiseErrors = [];
    var isDisableWrappingUncaughtPromiseRejection = global[__symbol__('DISABLE_WRAPPING_UNCAUGHT_PROMISE_REJECTION')] === true;

    var symbolPromise = __symbol__('Promise');

    var symbolThen = __symbol__('then');

    var creationTrace = '__creationTrace__';

    api.onUnhandledError = function (e) {
      if (api.showUncaughtError()) {
        var rejection = e && e.rejection;

        if (rejection) {
          console.error('Unhandled Promise rejection:', rejection instanceof Error ? rejection.message : rejection, '; Zone:', e.zone.name, '; Task:', e.task && e.task.source, '; Value:', rejection, rejection instanceof Error ? rejection.stack : undefined);
        } else {
          console.error(e);
        }
      }
    };

    api.microtaskDrainDone = function () {
      var _loop_1 = function _loop_1() {
        var uncaughtPromiseError = _uncaughtPromiseErrors.shift();

        try {
          uncaughtPromiseError.zone.runGuarded(function () {
            throw uncaughtPromiseError;
          });
        } catch (error) {
          handleUnhandledRejection(error);
        }
      };

      while (_uncaughtPromiseErrors.length) {
        _loop_1();
      }
    };

    var UNHANDLED_PROMISE_REJECTION_HANDLER_SYMBOL = __symbol__('unhandledPromiseRejectionHandler');

    function handleUnhandledRejection(e) {
      api.onUnhandledError(e);

      try {
        var handler = Zone[UNHANDLED_PROMISE_REJECTION_HANDLER_SYMBOL];

        if (typeof handler === 'function') {
          handler.call(this, e);
        }
      } catch (err) {}
    }

    function isThenable(value) {
      return value && value.then;
    }

    function forwardResolution(value) {
      return value;
    }

    function forwardRejection(rejection) {
      return ZoneAwarePromise.reject(rejection);
    }

    var symbolState = __symbol__('state');

    var symbolValue = __symbol__('value');

    var symbolFinally = __symbol__('finally');

    var symbolParentPromiseValue = __symbol__('parentPromiseValue');

    var symbolParentPromiseState = __symbol__('parentPromiseState');

    var source = 'Promise.then';
    var UNRESOLVED = null;
    var RESOLVED = true;
    var REJECTED = false;
    var REJECTED_NO_CATCH = 0;

    function makeResolver(promise, state) {
      return function (v) {
        try {
          resolvePromise(promise, state, v);
        } catch (err) {
          resolvePromise(promise, false, err);
        } // Do not return value or you will break the Promise spec.

      };
    }

    var once = function once() {
      var wasCalled = false;
      return function wrapper(wrappedFunction) {
        return function () {
          if (wasCalled) {
            return;
          }

          wasCalled = true;
          wrappedFunction.apply(null, arguments);
        };
      };
    };

    var TYPE_ERROR = 'Promise resolved with itself';

    var CURRENT_TASK_TRACE_SYMBOL = __symbol__('currentTaskTrace'); // Promise Resolution


    function resolvePromise(promise, state, value) {
      var onceWrapper = once();

      if (promise === value) {
        throw new TypeError(TYPE_ERROR);
      }

      if (promise[symbolState] === UNRESOLVED) {
        // should only get value.then once based on promise spec.
        var then = null;

        try {
          if (typeof value === 'object' || typeof value === 'function') {
            then = value && value.then;
          }
        } catch (err) {
          onceWrapper(function () {
            resolvePromise(promise, false, err);
          })();
          return promise;
        } // if (value instanceof ZoneAwarePromise) {


        if (state !== REJECTED && value instanceof ZoneAwarePromise && value.hasOwnProperty(symbolState) && value.hasOwnProperty(symbolValue) && value[symbolState] !== UNRESOLVED) {
          clearRejectedNoCatch(value);
          resolvePromise(promise, value[symbolState], value[symbolValue]);
        } else if (state !== REJECTED && typeof then === 'function') {
          try {
            then.call(value, onceWrapper(makeResolver(promise, state)), onceWrapper(makeResolver(promise, false)));
          } catch (err) {
            onceWrapper(function () {
              resolvePromise(promise, false, err);
            })();
          }
        } else {
          promise[symbolState] = state;
          var queue = promise[symbolValue];
          promise[symbolValue] = value;

          if (promise[symbolFinally] === symbolFinally) {
            // the promise is generated by Promise.prototype.finally
            if (state === RESOLVED) {
              // the state is resolved, should ignore the value
              // and use parent promise value
              promise[symbolState] = promise[symbolParentPromiseState];
              promise[symbolValue] = promise[symbolParentPromiseValue];
            }
          } // record task information in value when error occurs, so we can
          // do some additional work such as render longStackTrace


          if (state === REJECTED && value instanceof Error) {
            // check if longStackTraceZone is here
            var trace = Zone.currentTask && Zone.currentTask.data && Zone.currentTask.data[creationTrace];

            if (trace) {
              // only keep the long stack trace into error when in longStackTraceZone
              ObjectDefineProperty(value, CURRENT_TASK_TRACE_SYMBOL, {
                configurable: true,
                enumerable: false,
                writable: true,
                value: trace
              });
            }
          }

          for (var i = 0; i < queue.length;) {
            scheduleResolveOrReject(promise, queue[i++], queue[i++], queue[i++], queue[i++]);
          }

          if (queue.length == 0 && state == REJECTED) {
            promise[symbolState] = REJECTED_NO_CATCH;
            var uncaughtPromiseError = value;

            if (!isDisableWrappingUncaughtPromiseRejection) {
              // If disable wrapping uncaught promise reject
              // and the rejected value is an Error object,
              // use the value instead of wrapping it.
              try {
                // Here we throws a new Error to print more readable error log
                // and if the value is not an error, zone.js builds an `Error`
                // Object here to attach the stack information.
                throw new Error('Uncaught (in promise): ' + readableObjectToString(value) + (value && value.stack ? '\n' + value.stack : ''));
              } catch (err) {
                uncaughtPromiseError = err;
              }
            }

            uncaughtPromiseError.rejection = value;
            uncaughtPromiseError.promise = promise;
            uncaughtPromiseError.zone = Zone.current;
            uncaughtPromiseError.task = Zone.currentTask;

            _uncaughtPromiseErrors.push(uncaughtPromiseError);

            api.scheduleMicroTask(); // to make sure that it is running
          }
        }
      } // Resolving an already resolved promise is a noop.


      return promise;
    }

    var REJECTION_HANDLED_HANDLER = __symbol__('rejectionHandledHandler');

    function clearRejectedNoCatch(promise) {
      if (promise[symbolState] === REJECTED_NO_CATCH) {
        // if the promise is rejected no catch status
        // and queue.length > 0, means there is a error handler
        // here to handle the rejected promise, we should trigger
        // windows.rejectionhandled eventHandler or nodejs rejectionHandled
        // eventHandler
        try {
          var handler = Zone[REJECTION_HANDLED_HANDLER];

          if (handler && typeof handler === 'function') {
            handler.call(this, {
              rejection: promise[symbolValue],
              promise: promise
            });
          }
        } catch (err) {}

        promise[symbolState] = REJECTED;

        for (var i = 0; i < _uncaughtPromiseErrors.length; i++) {
          if (promise === _uncaughtPromiseErrors[i].promise) {
            _uncaughtPromiseErrors.splice(i, 1);
          }
        }
      }
    }

    function scheduleResolveOrReject(promise, zone, chainPromise, onFulfilled, onRejected) {
      clearRejectedNoCatch(promise);
      var promiseState = promise[symbolState];
      var delegate = promiseState ? typeof onFulfilled === 'function' ? onFulfilled : forwardResolution : typeof onRejected === 'function' ? onRejected : forwardRejection;
      zone.scheduleMicroTask(source, function () {
        try {
          var parentPromiseValue = promise[symbolValue];
          var isFinallyPromise = !!chainPromise && symbolFinally === chainPromise[symbolFinally];

          if (isFinallyPromise) {
            // if the promise is generated from finally call, keep parent promise's state and value
            chainPromise[symbolParentPromiseValue] = parentPromiseValue;
            chainPromise[symbolParentPromiseState] = promiseState;
          } // should not pass value to finally callback


          var value = zone.run(delegate, undefined, isFinallyPromise && delegate !== forwardRejection && delegate !== forwardResolution ? [] : [parentPromiseValue]);
          resolvePromise(chainPromise, true, value);
        } catch (error) {
          // if error occurs, should always return this error
          resolvePromise(chainPromise, false, error);
        }
      }, chainPromise);
    }

    var ZONE_AWARE_PROMISE_TO_STRING = 'function ZoneAwarePromise() { [native code] }';

    var noop = function noop() {};

    var ZoneAwarePromise =
    /** @class */
    function () {
      function ZoneAwarePromise(executor) {
        var promise = this;

        if (!(promise instanceof ZoneAwarePromise)) {
          throw new Error('Must be an instanceof Promise.');
        }

        promise[symbolState] = UNRESOLVED;
        promise[symbolValue] = []; // queue;

        try {
          executor && executor(makeResolver(promise, RESOLVED), makeResolver(promise, REJECTED));
        } catch (error) {
          resolvePromise(promise, false, error);
        }
      }

      ZoneAwarePromise.toString = function () {
        return ZONE_AWARE_PROMISE_TO_STRING;
      };

      ZoneAwarePromise.resolve = function (value) {
        return resolvePromise(new this(null), RESOLVED, value);
      };

      ZoneAwarePromise.reject = function (error) {
        return resolvePromise(new this(null), REJECTED, error);
      };

      ZoneAwarePromise.race = function (values) {
        var resolve;
        var reject;
        var promise = new this(function (res, rej) {
          resolve = res;
          reject = rej;
        });

        function onResolve(value) {
          resolve(value);
        }

        function onReject(error) {
          reject(error);
        }

        for (var _i = 0, values_1 = values; _i < values_1.length; _i++) {
          var value = values_1[_i];

          if (!isThenable(value)) {
            value = this.resolve(value);
          }

          value.then(onResolve, onReject);
        }

        return promise;
      };

      ZoneAwarePromise.all = function (values) {
        return ZoneAwarePromise.allWithCallback(values);
      };

      ZoneAwarePromise.allSettled = function (values) {
        var P = this && this.prototype instanceof ZoneAwarePromise ? this : ZoneAwarePromise;
        return P.allWithCallback(values, {
          thenCallback: function thenCallback(value) {
            return {
              status: 'fulfilled',
              value: value
            };
          },
          errorCallback: function errorCallback(err) {
            return {
              status: 'rejected',
              reason: err
            };
          }
        });
      };

      ZoneAwarePromise.allWithCallback = function (values, callback) {
        var resolve;
        var reject;
        var promise = new this(function (res, rej) {
          resolve = res;
          reject = rej;
        }); // Start at 2 to prevent prematurely resolving if .then is called immediately.

        var unresolvedCount = 2;
        var valueIndex = 0;
        var resolvedValues = [];

        var _loop_2 = function _loop_2(value) {
          if (!isThenable(value)) {
            value = this_1.resolve(value);
          }

          var curValueIndex = valueIndex;

          try {
            value.then(function (value) {
              resolvedValues[curValueIndex] = callback ? callback.thenCallback(value) : value;
              unresolvedCount--;

              if (unresolvedCount === 0) {
                resolve(resolvedValues);
              }
            }, function (err) {
              if (!callback) {
                reject(err);
              } else {
                resolvedValues[curValueIndex] = callback.errorCallback(err);
                unresolvedCount--;

                if (unresolvedCount === 0) {
                  resolve(resolvedValues);
                }
              }
            });
          } catch (thenErr) {
            reject(thenErr);
          }

          unresolvedCount++;
          valueIndex++;
        };

        var this_1 = this;

        for (var _i = 0, values_2 = values; _i < values_2.length; _i++) {
          var value = values_2[_i];

          _loop_2(value);
        } // Make the unresolvedCount zero-based again.


        unresolvedCount -= 2;

        if (unresolvedCount === 0) {
          resolve(resolvedValues);
        }

        return promise;
      };

      Object.defineProperty(ZoneAwarePromise.prototype, Symbol.toStringTag, {
        get: function get() {
          return 'Promise';
        },
        enumerable: true,
        configurable: true
      });
      Object.defineProperty(ZoneAwarePromise.prototype, Symbol.species, {
        get: function get() {
          return ZoneAwarePromise;
        },
        enumerable: true,
        configurable: true
      });

      ZoneAwarePromise.prototype.then = function (onFulfilled, onRejected) {
        var C = this.constructor[Symbol.species];

        if (!C || typeof C !== 'function') {
          C = this.constructor || ZoneAwarePromise;
        }

        var chainPromise = new C(noop);
        var zone = Zone.current;

        if (this[symbolState] == UNRESOLVED) {
          this[symbolValue].push(zone, chainPromise, onFulfilled, onRejected);
        } else {
          scheduleResolveOrReject(this, zone, chainPromise, onFulfilled, onRejected);
        }

        return chainPromise;
      };

      ZoneAwarePromise.prototype.catch = function (onRejected) {
        return this.then(null, onRejected);
      };

      ZoneAwarePromise.prototype.finally = function (onFinally) {
        var C = this.constructor[Symbol.species];

        if (!C || typeof C !== 'function') {
          C = ZoneAwarePromise;
        }

        var chainPromise = new C(noop);
        chainPromise[symbolFinally] = symbolFinally;
        var zone = Zone.current;

        if (this[symbolState] == UNRESOLVED) {
          this[symbolValue].push(zone, chainPromise, onFinally, onFinally);
        } else {
          scheduleResolveOrReject(this, zone, chainPromise, onFinally, onFinally);
        }

        return chainPromise;
      };

      return ZoneAwarePromise;
    }(); // Protect against aggressive optimizers dropping seemingly unused properties.
    // E.g. Closure Compiler in advanced mode.


    ZoneAwarePromise['resolve'] = ZoneAwarePromise.resolve;
    ZoneAwarePromise['reject'] = ZoneAwarePromise.reject;
    ZoneAwarePromise['race'] = ZoneAwarePromise.race;
    ZoneAwarePromise['all'] = ZoneAwarePromise.all;
    var NativePromise = global[symbolPromise] = global['Promise'];

    var ZONE_AWARE_PROMISE = Zone.__symbol__('ZoneAwarePromise');

    var desc = ObjectGetOwnPropertyDescriptor(global, 'Promise');

    if (!desc || desc.configurable) {
      desc && delete desc.writable;
      desc && delete desc.value;

      if (!desc) {
        desc = {
          configurable: true,
          enumerable: true
        };
      }

      desc.get = function () {
        // if we already set ZoneAwarePromise, use patched one
        // otherwise return native one.
        return global[ZONE_AWARE_PROMISE] ? global[ZONE_AWARE_PROMISE] : global[symbolPromise];
      };

      desc.set = function (NewNativePromise) {
        if (NewNativePromise === ZoneAwarePromise) {
          // if the NewNativePromise is ZoneAwarePromise
          // save to global
          global[ZONE_AWARE_PROMISE] = NewNativePromise;
        } else {
          // if the NewNativePromise is not ZoneAwarePromise
          // for example: after load zone.js, some library just
          // set es6-promise to global, if we set it to global
          // directly, assertZonePatched will fail and angular
          // will not loaded, so we just set the NewNativePromise
          // to global[symbolPromise], so the result is just like
          // we load ES6 Promise before zone.js
          global[symbolPromise] = NewNativePromise;

          if (!NewNativePromise.prototype[symbolThen]) {
            patchThen(NewNativePromise);
          }

          api.setNativePromise(NewNativePromise);
        }
      };

      ObjectDefineProperty(global, 'Promise', desc);
    }

    global['Promise'] = ZoneAwarePromise;

    var symbolThenPatched = __symbol__('thenPatched');

    function patchThen(Ctor) {
      var proto = Ctor.prototype;
      var prop = ObjectGetOwnPropertyDescriptor(proto, 'then');

      if (prop && (prop.writable === false || !prop.configurable)) {
        // check Ctor.prototype.then propertyDescriptor is writable or not
        // in meteor env, writable is false, we should ignore such case
        return;
      }

      var originalThen = proto.then; // Keep a reference to the original method.

      proto[symbolThen] = originalThen;

      Ctor.prototype.then = function (onResolve, onReject) {
        var _this = this;

        var wrapped = new ZoneAwarePromise(function (resolve, reject) {
          originalThen.call(_this, resolve, reject);
        });
        return wrapped.then(onResolve, onReject);
      };

      Ctor[symbolThenPatched] = true;
    }

    api.patchThen = patchThen;

    function zoneify(fn) {
      return function () {
        var resultPromise = fn.apply(this, arguments);

        if (resultPromise instanceof ZoneAwarePromise) {
          return resultPromise;
        }

        var ctor = resultPromise.constructor;

        if (!ctor[symbolThenPatched]) {
          patchThen(ctor);
        }

        return resultPromise;
      };
    }

    if (NativePromise) {
      patchThen(NativePromise);
      var fetch_1 = global['fetch'];

      if (typeof fetch_1 == 'function') {
        global[api.symbol('fetch')] = fetch_1;
        global['fetch'] = zoneify(fetch_1);
      }
    } // This is not part of public API, but it is useful for tests, so we expose it.


    Promise[Zone.__symbol__('uncaughtPromiseErrors')] = _uncaughtPromiseErrors;
    return ZoneAwarePromise;
  });
  /**
   * @license
   * Copyright Google Inc. All Rights Reserved.
   *
   * Use of this source code is governed by an MIT-style license that can be
   * found in the LICENSE file at https://angular.io/license
   */

  /**
   * Suppress closure compiler errors about unknown 'Zone' variable
   * @fileoverview
   * @suppress {undefinedVars,globalThis,missingRequire}
   */
  /// <reference types="node"/>
  // issue #989, to reduce bundle size, use short name

  /** Object.getOwnPropertyDescriptor */


  var ObjectGetOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
  /** Object.defineProperty */

  var ObjectDefineProperty = Object.defineProperty;
  /** Object.getPrototypeOf */

  var ObjectGetPrototypeOf = Object.getPrototypeOf;
  /** Object.create */

  var ObjectCreate = Object.create;
  /** Array.prototype.slice */

  var ArraySlice = Array.prototype.slice;
  /** addEventListener string const */

  var ADD_EVENT_LISTENER_STR = 'addEventListener';
  /** removeEventListener string const */

  var REMOVE_EVENT_LISTENER_STR = 'removeEventListener';
  /** zoneSymbol addEventListener */

  var ZONE_SYMBOL_ADD_EVENT_LISTENER = Zone.__symbol__(ADD_EVENT_LISTENER_STR);
  /** zoneSymbol removeEventListener */


  var ZONE_SYMBOL_REMOVE_EVENT_LISTENER = Zone.__symbol__(REMOVE_EVENT_LISTENER_STR);
  /** true string const */


  var TRUE_STR = 'true';
  /** false string const */

  var FALSE_STR = 'false';
  /** Zone symbol prefix string const. */

  var ZONE_SYMBOL_PREFIX = Zone.__symbol__('');

  function wrapWithCurrentZone(callback, source) {
    return Zone.current.wrap(callback, source);
  }

  function scheduleMacroTaskWithCurrentZone(source, callback, data, customSchedule, customCancel) {
    return Zone.current.scheduleMacroTask(source, callback, data, customSchedule, customCancel);
  }

  var zoneSymbol = Zone.__symbol__;
  var isWindowExists = typeof window !== 'undefined';
  var internalWindow = isWindowExists ? window : undefined;

  var _global = isWindowExists && internalWindow || typeof self === 'object' && self || global;

  var REMOVE_ATTRIBUTE = 'removeAttribute';
  var NULL_ON_PROP_VALUE = [null];

  function bindArguments(args, source) {
    for (var i = args.length - 1; i >= 0; i--) {
      if (typeof args[i] === 'function') {
        args[i] = wrapWithCurrentZone(args[i], source + '_' + i);
      }
    }

    return args;
  }

  function patchPrototype(prototype, fnNames) {
    var source = prototype.constructor['name'];

    var _loop_3 = function _loop_3(i) {
      var name_1 = fnNames[i];
      var delegate = prototype[name_1];

      if (delegate) {
        var prototypeDesc = ObjectGetOwnPropertyDescriptor(prototype, name_1);

        if (!isPropertyWritable(prototypeDesc)) {
          return "continue";
        }

        prototype[name_1] = function (delegate) {
          var patched = function patched() {
            return delegate.apply(this, bindArguments(arguments, source + '.' + name_1));
          };

          attachOriginToPatched(patched, delegate);
          return patched;
        }(delegate);
      }
    };

    for (var i = 0; i < fnNames.length; i++) {
      _loop_3(i);
    }
  }

  function isPropertyWritable(propertyDesc) {
    if (!propertyDesc) {
      return true;
    }

    if (propertyDesc.writable === false) {
      return false;
    }

    return !(typeof propertyDesc.get === 'function' && typeof propertyDesc.set === 'undefined');
  }

  var isWebWorker = typeof WorkerGlobalScope !== 'undefined' && self instanceof WorkerGlobalScope; // Make sure to access `process` through `_global` so that WebPack does not accidentally browserify
  // this code.

  var isNode = !('nw' in _global) && typeof _global.process !== 'undefined' && {}.toString.call(_global.process) === '[object process]';
  var isBrowser = !isNode && !isWebWorker && !!(isWindowExists && internalWindow['HTMLElement']); // we are in electron of nw, so we are both browser and nodejs
  // Make sure to access `process` through `_global` so that WebPack does not accidentally browserify
  // this code.

  var isMix = typeof _global.process !== 'undefined' && {}.toString.call(_global.process) === '[object process]' && !isWebWorker && !!(isWindowExists && internalWindow['HTMLElement']);
  var zoneSymbolEventNames = {};

  var wrapFn = function wrapFn(event) {
    // https://github.com/angular/zone.js/issues/911, in IE, sometimes
    // event will be undefined, so we need to use window.event
    event = event || _global.event;

    if (!event) {
      return;
    }

    var eventNameSymbol = zoneSymbolEventNames[event.type];

    if (!eventNameSymbol) {
      eventNameSymbol = zoneSymbolEventNames[event.type] = zoneSymbol('ON_PROPERTY' + event.type);
    }

    var target = this || event.target || _global;
    var listener = target[eventNameSymbol];
    var result;

    if (isBrowser && target === internalWindow && event.type === 'error') {
      // window.onerror have different signiture
      // https://developer.mozilla.org/en-US/docs/Web/API/GlobalEventHandlers/onerror#window.onerror
      // and onerror callback will prevent default when callback return true
      var errorEvent = event;
      result = listener && listener.call(this, errorEvent.message, errorEvent.filename, errorEvent.lineno, errorEvent.colno, errorEvent.error);

      if (result === true) {
        event.preventDefault();
      }
    } else {
      result = listener && listener.apply(this, arguments);

      if (result != undefined && !result) {
        event.preventDefault();
      }
    }

    return result;
  };

  function patchProperty(obj, prop, prototype) {
    var desc = ObjectGetOwnPropertyDescriptor(obj, prop);

    if (!desc && prototype) {
      // when patch window object, use prototype to check prop exist or not
      var prototypeDesc = ObjectGetOwnPropertyDescriptor(prototype, prop);

      if (prototypeDesc) {
        desc = {
          enumerable: true,
          configurable: true
        };
      }
    } // if the descriptor not exists or is not configurable
    // just return


    if (!desc || !desc.configurable) {
      return;
    }

    var onPropPatchedSymbol = zoneSymbol('on' + prop + 'patched');

    if (obj.hasOwnProperty(onPropPatchedSymbol) && obj[onPropPatchedSymbol]) {
      return;
    } // A property descriptor cannot have getter/setter and be writable
    // deleting the writable and value properties avoids this error:
    //
    // TypeError: property descriptors must not specify a value or be writable when a
    // getter or setter has been specified


    delete desc.writable;
    delete desc.value;
    var originalDescGet = desc.get;
    var originalDescSet = desc.set; // substr(2) cuz 'onclick' -> 'click', etc

    var eventName = prop.substr(2);
    var eventNameSymbol = zoneSymbolEventNames[eventName];

    if (!eventNameSymbol) {
      eventNameSymbol = zoneSymbolEventNames[eventName] = zoneSymbol('ON_PROPERTY' + eventName);
    }

    desc.set = function (newValue) {
      // in some of windows's onproperty callback, this is undefined
      // so we need to check it
      var target = this;

      if (!target && obj === _global) {
        target = _global;
      }

      if (!target) {
        return;
      }

      var previousValue = target[eventNameSymbol];

      if (previousValue) {
        target.removeEventListener(eventName, wrapFn);
      } // issue #978, when onload handler was added before loading zone.js
      // we should remove it with originalDescSet


      if (originalDescSet) {
        originalDescSet.apply(target, NULL_ON_PROP_VALUE);
      }

      if (typeof newValue === 'function') {
        target[eventNameSymbol] = newValue;
        target.addEventListener(eventName, wrapFn, false);
      } else {
        target[eventNameSymbol] = null;
      }
    }; // The getter would return undefined for unassigned properties but the default value of an
    // unassigned property is null


    desc.get = function () {
      // in some of windows's onproperty callback, this is undefined
      // so we need to check it
      var target = this;

      if (!target && obj === _global) {
        target = _global;
      }

      if (!target) {
        return null;
      }

      var listener = target[eventNameSymbol];

      if (listener) {
        return listener;
      } else if (originalDescGet) {
        // result will be null when use inline event attribute,
        // such as <button onclick="func();">OK</button>
        // because the onclick function is internal raw uncompiled handler
        // the onclick will be evaluated when first time event was triggered or
        // the property is accessed, https://github.com/angular/zone.js/issues/525
        // so we should use original native get to retrieve the handler
        var value = originalDescGet && originalDescGet.call(this);

        if (value) {
          desc.set.call(this, value);

          if (typeof target[REMOVE_ATTRIBUTE] === 'function') {
            target.removeAttribute(prop);
          }

          return value;
        }
      }

      return null;
    };

    ObjectDefineProperty(obj, prop, desc);
    obj[onPropPatchedSymbol] = true;
  }

  function patchOnProperties(obj, properties, prototype) {
    if (properties) {
      for (var i = 0; i < properties.length; i++) {
        patchProperty(obj, 'on' + properties[i], prototype);
      }
    } else {
      var onProperties = [];

      for (var prop in obj) {
        if (prop.substr(0, 2) == 'on') {
          onProperties.push(prop);
        }
      }

      for (var j = 0; j < onProperties.length; j++) {
        patchProperty(obj, onProperties[j], prototype);
      }
    }
  }

  var originalInstanceKey = zoneSymbol('originalInstance'); // wrap some native API on `window`

  function patchClass(className) {
    var OriginalClass = _global[className];
    if (!OriginalClass) return; // keep original class in global

    _global[zoneSymbol(className)] = OriginalClass;

    _global[className] = function () {
      var a = bindArguments(arguments, className);

      switch (a.length) {
        case 0:
          this[originalInstanceKey] = new OriginalClass();
          break;

        case 1:
          this[originalInstanceKey] = new OriginalClass(a[0]);
          break;

        case 2:
          this[originalInstanceKey] = new OriginalClass(a[0], a[1]);
          break;

        case 3:
          this[originalInstanceKey] = new OriginalClass(a[0], a[1], a[2]);
          break;

        case 4:
          this[originalInstanceKey] = new OriginalClass(a[0], a[1], a[2], a[3]);
          break;

        default:
          throw new Error('Arg list too long.');
      }
    }; // attach original delegate to patched function


    attachOriginToPatched(_global[className], OriginalClass);
    var instance = new OriginalClass(function () {});
    var prop;

    for (prop in instance) {
      // https://bugs.webkit.org/show_bug.cgi?id=44721
      if (className === 'XMLHttpRequest' && prop === 'responseBlob') continue;

      (function (prop) {
        if (typeof instance[prop] === 'function') {
          _global[className].prototype[prop] = function () {
            return this[originalInstanceKey][prop].apply(this[originalInstanceKey], arguments);
          };
        } else {
          ObjectDefineProperty(_global[className].prototype, prop, {
            set: function set(fn) {
              if (typeof fn === 'function') {
                this[originalInstanceKey][prop] = wrapWithCurrentZone(fn, className + '.' + prop); // keep callback in wrapped function so we can
                // use it in Function.prototype.toString to return
                // the native one.

                attachOriginToPatched(this[originalInstanceKey][prop], fn);
              } else {
                this[originalInstanceKey][prop] = fn;
              }
            },
            get: function get() {
              return this[originalInstanceKey][prop];
            }
          });
        }
      })(prop);
    }

    for (prop in OriginalClass) {
      if (prop !== 'prototype' && OriginalClass.hasOwnProperty(prop)) {
        _global[className][prop] = OriginalClass[prop];
      }
    }
  }

  function copySymbolProperties(src, dest) {
    if (typeof Object.getOwnPropertySymbols !== 'function') {
      return;
    }

    var symbols = Object.getOwnPropertySymbols(src);
    symbols.forEach(function (symbol) {
      var desc = Object.getOwnPropertyDescriptor(src, symbol);
      Object.defineProperty(dest, symbol, {
        get: function get() {
          return src[symbol];
        },
        set: function set(value) {
          if (desc && (!desc.writable || typeof desc.set !== 'function')) {
            // if src[symbol] is not writable or not have a setter, just return
            return;
          }

          src[symbol] = value;
        },
        enumerable: desc ? desc.enumerable : true,
        configurable: desc ? desc.configurable : true
      });
    });
  }

  var shouldCopySymbolProperties = false;

  function patchMethod(target, name, patchFn) {
    var proto = target;

    while (proto && !proto.hasOwnProperty(name)) {
      proto = ObjectGetPrototypeOf(proto);
    }

    if (!proto && target[name]) {
      // somehow we did not find it, but we can see it. This happens on IE for Window properties.
      proto = target;
    }

    var delegateName = zoneSymbol(name);
    var delegate = null;

    if (proto && !(delegate = proto[delegateName])) {
      delegate = proto[delegateName] = proto[name]; // check whether proto[name] is writable
      // some property is readonly in safari, such as HtmlCanvasElement.prototype.toBlob

      var desc = proto && ObjectGetOwnPropertyDescriptor(proto, name);

      if (isPropertyWritable(desc)) {
        var patchDelegate_1 = patchFn(delegate, delegateName, name);

        proto[name] = function () {
          return patchDelegate_1(this, arguments);
        };

        attachOriginToPatched(proto[name], delegate);

        if (shouldCopySymbolProperties) {
          copySymbolProperties(delegate, proto[name]);
        }
      }
    }

    return delegate;
  } // TODO: @JiaLiPassion, support cancel task later if necessary


  function patchMacroTask(obj, funcName, metaCreator) {
    var setNative = null;

    function scheduleTask(task) {
      var data = task.data;

      data.args[data.cbIdx] = function () {
        task.invoke.apply(this, arguments);
      };

      setNative.apply(data.target, data.args);
      return task;
    }

    setNative = patchMethod(obj, funcName, function (delegate) {
      return function (self, args) {
        var meta = metaCreator(self, args);

        if (meta.cbIdx >= 0 && typeof args[meta.cbIdx] === 'function') {
          return scheduleMacroTaskWithCurrentZone(meta.name, args[meta.cbIdx], meta, scheduleTask);
        } else {
          // cause an error by calling it directly.
          return delegate.apply(self, args);
        }
      };
    });
  }

  function attachOriginToPatched(patched, original) {
    patched[zoneSymbol('OriginalDelegate')] = original;
  }

  var isDetectedIEOrEdge = false;
  var ieOrEdge = false;

  function isIE() {
    try {
      var ua = internalWindow.navigator.userAgent;

      if (ua.indexOf('MSIE ') !== -1 || ua.indexOf('Trident/') !== -1) {
        return true;
      }
    } catch (error) {}

    return false;
  }

  function isIEOrEdge() {
    if (isDetectedIEOrEdge) {
      return ieOrEdge;
    }

    isDetectedIEOrEdge = true;

    try {
      var ua = internalWindow.navigator.userAgent;

      if (ua.indexOf('MSIE ') !== -1 || ua.indexOf('Trident/') !== -1 || ua.indexOf('Edge/') !== -1) {
        ieOrEdge = true;
      }
    } catch (error) {}

    return ieOrEdge;
  }
  /**
   * @license
   * Copyright Google Inc. All Rights Reserved.
   *
   * Use of this source code is governed by an MIT-style license that can be
   * found in the LICENSE file at https://angular.io/license
   */
  // override Function.prototype.toString to make zone.js patched function
  // look like native function


  Zone.__load_patch('toString', function (global) {
    // patch Func.prototype.toString to let them look like native
    var originalFunctionToString = Function.prototype.toString;
    var ORIGINAL_DELEGATE_SYMBOL = zoneSymbol('OriginalDelegate');
    var PROMISE_SYMBOL = zoneSymbol('Promise');
    var ERROR_SYMBOL = zoneSymbol('Error');

    var newFunctionToString = function toString() {
      if (typeof this === 'function') {
        var originalDelegate = this[ORIGINAL_DELEGATE_SYMBOL];

        if (originalDelegate) {
          if (typeof originalDelegate === 'function') {
            return originalFunctionToString.call(originalDelegate);
          } else {
            return Object.prototype.toString.call(originalDelegate);
          }
        }

        if (this === Promise) {
          var nativePromise = global[PROMISE_SYMBOL];

          if (nativePromise) {
            return originalFunctionToString.call(nativePromise);
          }
        }

        if (this === Error) {
          var nativeError = global[ERROR_SYMBOL];

          if (nativeError) {
            return originalFunctionToString.call(nativeError);
          }
        }
      }

      return originalFunctionToString.call(this);
    };

    newFunctionToString[ORIGINAL_DELEGATE_SYMBOL] = originalFunctionToString;
    Function.prototype.toString = newFunctionToString; // patch Object.prototype.toString to let them look like native

    var originalObjectToString = Object.prototype.toString;
    var PROMISE_OBJECT_TO_STRING = '[object Promise]';

    Object.prototype.toString = function () {
      if (this instanceof Promise) {
        return PROMISE_OBJECT_TO_STRING;
      }

      return originalObjectToString.call(this);
    };
  });
  /**
   * @license
   * Copyright Google Inc. All Rights Reserved.
   *
   * Use of this source code is governed by an MIT-style license that can be
   * found in the LICENSE file at https://angular.io/license
   */


  var passiveSupported = false;

  if (typeof window !== 'undefined') {
    try {
      var options = Object.defineProperty({}, 'passive', {
        get: function get() {
          passiveSupported = true;
        }
      });
      window.addEventListener('test', options, options);
      window.removeEventListener('test', options, options);
    } catch (err) {
      passiveSupported = false;
    }
  } // an identifier to tell ZoneTask do not create a new invoke closure


  var OPTIMIZED_ZONE_EVENT_TASK_DATA = {
    useG: true
  };
  var zoneSymbolEventNames$1 = {};
  var globalSources = {};
  var EVENT_NAME_SYMBOL_REGX = new RegExp('^' + ZONE_SYMBOL_PREFIX + '(\\w+)(true|false)$');
  var IMMEDIATE_PROPAGATION_SYMBOL = zoneSymbol('propagationStopped');

  function prepareEventNames(eventName, eventNameToString) {
    var falseEventName = (eventNameToString ? eventNameToString(eventName) : eventName) + FALSE_STR;
    var trueEventName = (eventNameToString ? eventNameToString(eventName) : eventName) + TRUE_STR;
    var symbol = ZONE_SYMBOL_PREFIX + falseEventName;
    var symbolCapture = ZONE_SYMBOL_PREFIX + trueEventName;
    zoneSymbolEventNames$1[eventName] = {};
    zoneSymbolEventNames$1[eventName][FALSE_STR] = symbol;
    zoneSymbolEventNames$1[eventName][TRUE_STR] = symbolCapture;
  }

  function patchEventTarget(_global, apis, patchOptions) {
    var ADD_EVENT_LISTENER = patchOptions && patchOptions.add || ADD_EVENT_LISTENER_STR;
    var REMOVE_EVENT_LISTENER = patchOptions && patchOptions.rm || REMOVE_EVENT_LISTENER_STR;
    var LISTENERS_EVENT_LISTENER = patchOptions && patchOptions.listeners || 'eventListeners';
    var REMOVE_ALL_LISTENERS_EVENT_LISTENER = patchOptions && patchOptions.rmAll || 'removeAllListeners';
    var zoneSymbolAddEventListener = zoneSymbol(ADD_EVENT_LISTENER);
    var ADD_EVENT_LISTENER_SOURCE = '.' + ADD_EVENT_LISTENER + ':';
    var PREPEND_EVENT_LISTENER = 'prependListener';
    var PREPEND_EVENT_LISTENER_SOURCE = '.' + PREPEND_EVENT_LISTENER + ':';

    var invokeTask = function invokeTask(task, target, event) {
      // for better performance, check isRemoved which is set
      // by removeEventListener
      if (task.isRemoved) {
        return;
      }

      var delegate = task.callback;

      if (typeof delegate === 'object' && delegate.handleEvent) {
        // create the bind version of handleEvent when invoke
        task.callback = function (event) {
          return delegate.handleEvent(event);
        };

        task.originalDelegate = delegate;
      } // invoke static task.invoke


      task.invoke(task, target, [event]);
      var options = task.options;

      if (options && typeof options === 'object' && options.once) {
        // if options.once is true, after invoke once remove listener here
        // only browser need to do this, nodejs eventEmitter will cal removeListener
        // inside EventEmitter.once
        var delegate_1 = task.originalDelegate ? task.originalDelegate : task.callback;
        target[REMOVE_EVENT_LISTENER].call(target, event.type, delegate_1, options);
      }
    }; // global shared zoneAwareCallback to handle all event callback with capture = false


    var globalZoneAwareCallback = function globalZoneAwareCallback(event) {
      // https://github.com/angular/zone.js/issues/911, in IE, sometimes
      // event will be undefined, so we need to use window.event
      event = event || _global.event;

      if (!event) {
        return;
      } // event.target is needed for Samsung TV and SourceBuffer
      // || global is needed https://github.com/angular/zone.js/issues/190


      var target = this || event.target || _global;
      var tasks = target[zoneSymbolEventNames$1[event.type][FALSE_STR]];

      if (tasks) {
        // invoke all tasks which attached to current target with given event.type and capture = false
        // for performance concern, if task.length === 1, just invoke
        if (tasks.length === 1) {
          invokeTask(tasks[0], target, event);
        } else {
          // https://github.com/angular/zone.js/issues/836
          // copy the tasks array before invoke, to avoid
          // the callback will remove itself or other listener
          var copyTasks = tasks.slice();

          for (var i = 0; i < copyTasks.length; i++) {
            if (event && event[IMMEDIATE_PROPAGATION_SYMBOL] === true) {
              break;
            }

            invokeTask(copyTasks[i], target, event);
          }
        }
      }
    }; // global shared zoneAwareCallback to handle all event callback with capture = true


    var globalZoneAwareCaptureCallback = function globalZoneAwareCaptureCallback(event) {
      // https://github.com/angular/zone.js/issues/911, in IE, sometimes
      // event will be undefined, so we need to use window.event
      event = event || _global.event;

      if (!event) {
        return;
      } // event.target is needed for Samsung TV and SourceBuffer
      // || global is needed https://github.com/angular/zone.js/issues/190


      var target = this || event.target || _global;
      var tasks = target[zoneSymbolEventNames$1[event.type][TRUE_STR]];

      if (tasks) {
        // invoke all tasks which attached to current target with given event.type and capture = false
        // for performance concern, if task.length === 1, just invoke
        if (tasks.length === 1) {
          invokeTask(tasks[0], target, event);
        } else {
          // https://github.com/angular/zone.js/issues/836
          // copy the tasks array before invoke, to avoid
          // the callback will remove itself or other listener
          var copyTasks = tasks.slice();

          for (var i = 0; i < copyTasks.length; i++) {
            if (event && event[IMMEDIATE_PROPAGATION_SYMBOL] === true) {
              break;
            }

            invokeTask(copyTasks[i], target, event);
          }
        }
      }
    };

    function patchEventTargetMethods(obj, patchOptions) {
      if (!obj) {
        return false;
      }

      var useGlobalCallback = true;

      if (patchOptions && patchOptions.useG !== undefined) {
        useGlobalCallback = patchOptions.useG;
      }

      var validateHandler = patchOptions && patchOptions.vh;
      var checkDuplicate = true;

      if (patchOptions && patchOptions.chkDup !== undefined) {
        checkDuplicate = patchOptions.chkDup;
      }

      var returnTarget = false;

      if (patchOptions && patchOptions.rt !== undefined) {
        returnTarget = patchOptions.rt;
      }

      var proto = obj;

      while (proto && !proto.hasOwnProperty(ADD_EVENT_LISTENER)) {
        proto = ObjectGetPrototypeOf(proto);
      }

      if (!proto && obj[ADD_EVENT_LISTENER]) {
        // somehow we did not find it, but we can see it. This happens on IE for Window properties.
        proto = obj;
      }

      if (!proto) {
        return false;
      }

      if (proto[zoneSymbolAddEventListener]) {
        return false;
      }

      var eventNameToString = patchOptions && patchOptions.eventNameToString; // a shared global taskData to pass data for scheduleEventTask
      // so we do not need to create a new object just for pass some data

      var taskData = {};
      var nativeAddEventListener = proto[zoneSymbolAddEventListener] = proto[ADD_EVENT_LISTENER];
      var nativeRemoveEventListener = proto[zoneSymbol(REMOVE_EVENT_LISTENER)] = proto[REMOVE_EVENT_LISTENER];
      var nativeListeners = proto[zoneSymbol(LISTENERS_EVENT_LISTENER)] = proto[LISTENERS_EVENT_LISTENER];
      var nativeRemoveAllListeners = proto[zoneSymbol(REMOVE_ALL_LISTENERS_EVENT_LISTENER)] = proto[REMOVE_ALL_LISTENERS_EVENT_LISTENER];
      var nativePrependEventListener;

      if (patchOptions && patchOptions.prepend) {
        nativePrependEventListener = proto[zoneSymbol(patchOptions.prepend)] = proto[patchOptions.prepend];
      }
      /**
       * This util function will build an option object with passive option
       * to handle all possible input from the user.
       */


      function buildEventListenerOptions(options, passive) {
        if (!passiveSupported && typeof options === 'object' && options) {
          // doesn't support passive but user want to pass an object as options.
          // this will not work on some old browser, so we just pass a boolean
          // as useCapture parameter
          return !!options.capture;
        }

        if (!passiveSupported || !passive) {
          return options;
        }

        if (typeof options === 'boolean') {
          return {
            capture: options,
            passive: true
          };
        }

        if (!options) {
          return {
            passive: true
          };
        }

        if (typeof options === 'object' && options.passive !== false) {
          return Object.assign(Object.assign({}, options), {
            passive: true
          });
        }

        return options;
      }

      var customScheduleGlobal = function customScheduleGlobal(task) {
        // if there is already a task for the eventName + capture,
        // just return, because we use the shared globalZoneAwareCallback here.
        if (taskData.isExisting) {
          return;
        }

        return nativeAddEventListener.call(taskData.target, taskData.eventName, taskData.capture ? globalZoneAwareCaptureCallback : globalZoneAwareCallback, taskData.options);
      };

      var customCancelGlobal = function customCancelGlobal(task) {
        // if task is not marked as isRemoved, this call is directly
        // from Zone.prototype.cancelTask, we should remove the task
        // from tasksList of target first
        if (!task.isRemoved) {
          var symbolEventNames = zoneSymbolEventNames$1[task.eventName];
          var symbolEventName = void 0;

          if (symbolEventNames) {
            symbolEventName = symbolEventNames[task.capture ? TRUE_STR : FALSE_STR];
          }

          var existingTasks = symbolEventName && task.target[symbolEventName];

          if (existingTasks) {
            for (var i = 0; i < existingTasks.length; i++) {
              var existingTask = existingTasks[i];

              if (existingTask === task) {
                existingTasks.splice(i, 1); // set isRemoved to data for faster invokeTask check

                task.isRemoved = true;

                if (existingTasks.length === 0) {
                  // all tasks for the eventName + capture have gone,
                  // remove globalZoneAwareCallback and remove the task cache from target
                  task.allRemoved = true;
                  task.target[symbolEventName] = null;
                }

                break;
              }
            }
          }
        } // if all tasks for the eventName + capture have gone,
        // we will really remove the global event callback,
        // if not, return


        if (!task.allRemoved) {
          return;
        }

        return nativeRemoveEventListener.call(task.target, task.eventName, task.capture ? globalZoneAwareCaptureCallback : globalZoneAwareCallback, task.options);
      };

      var customScheduleNonGlobal = function customScheduleNonGlobal(task) {
        return nativeAddEventListener.call(taskData.target, taskData.eventName, task.invoke, taskData.options);
      };

      var customSchedulePrepend = function customSchedulePrepend(task) {
        return nativePrependEventListener.call(taskData.target, taskData.eventName, task.invoke, taskData.options);
      };

      var customCancelNonGlobal = function customCancelNonGlobal(task) {
        return nativeRemoveEventListener.call(task.target, task.eventName, task.invoke, task.options);
      };

      var customSchedule = useGlobalCallback ? customScheduleGlobal : customScheduleNonGlobal;
      var customCancel = useGlobalCallback ? customCancelGlobal : customCancelNonGlobal;

      var compareTaskCallbackVsDelegate = function compareTaskCallbackVsDelegate(task, delegate) {
        var typeOfDelegate = typeof delegate;
        return typeOfDelegate === 'function' && task.callback === delegate || typeOfDelegate === 'object' && task.originalDelegate === delegate;
      };

      var compare = patchOptions && patchOptions.diff ? patchOptions.diff : compareTaskCallbackVsDelegate;
      var blackListedEvents = Zone[zoneSymbol('BLACK_LISTED_EVENTS')];

      var passiveEvents = _global[zoneSymbol('PASSIVE_EVENTS')];

      var makeAddListener = function makeAddListener(nativeListener, addSource, customScheduleFn, customCancelFn, returnTarget, prepend) {
        if (returnTarget === void 0) {
          returnTarget = false;
        }

        if (prepend === void 0) {
          prepend = false;
        }

        return function () {
          var target = this || _global;
          var eventName = arguments[0];

          if (patchOptions && patchOptions.transferEventName) {
            eventName = patchOptions.transferEventName(eventName);
          }

          var delegate = arguments[1];

          if (!delegate) {
            return nativeListener.apply(this, arguments);
          }

          if (isNode && eventName === 'uncaughtException') {
            // don't patch uncaughtException of nodejs to prevent endless loop
            return nativeListener.apply(this, arguments);
          } // don't create the bind delegate function for handleEvent
          // case here to improve addEventListener performance
          // we will create the bind delegate when invoke


          var isHandleEvent = false;

          if (typeof delegate !== 'function') {
            if (!delegate.handleEvent) {
              return nativeListener.apply(this, arguments);
            }

            isHandleEvent = true;
          }

          if (validateHandler && !validateHandler(nativeListener, delegate, target, arguments)) {
            return;
          }

          var passive = passiveSupported && !!passiveEvents && passiveEvents.indexOf(eventName) !== -1;
          var options = buildEventListenerOptions(arguments[2], passive);

          if (blackListedEvents) {
            // check black list
            for (var i = 0; i < blackListedEvents.length; i++) {
              if (eventName === blackListedEvents[i]) {
                if (passive) {
                  return nativeListener.call(target, eventName, delegate, options);
                } else {
                  return nativeListener.apply(this, arguments);
                }
              }
            }
          }

          var capture = !options ? false : typeof options === 'boolean' ? true : options.capture;
          var once = options && typeof options === 'object' ? options.once : false;
          var zone = Zone.current;
          var symbolEventNames = zoneSymbolEventNames$1[eventName];

          if (!symbolEventNames) {
            prepareEventNames(eventName, eventNameToString);
            symbolEventNames = zoneSymbolEventNames$1[eventName];
          }

          var symbolEventName = symbolEventNames[capture ? TRUE_STR : FALSE_STR];
          var existingTasks = target[symbolEventName];
          var isExisting = false;

          if (existingTasks) {
            // already have task registered
            isExisting = true;

            if (checkDuplicate) {
              for (var i = 0; i < existingTasks.length; i++) {
                if (compare(existingTasks[i], delegate)) {
                  // same callback, same capture, same event name, just return
                  return;
                }
              }
            }
          } else {
            existingTasks = target[symbolEventName] = [];
          }

          var source;
          var constructorName = target.constructor['name'];
          var targetSource = globalSources[constructorName];

          if (targetSource) {
            source = targetSource[eventName];
          }

          if (!source) {
            source = constructorName + addSource + (eventNameToString ? eventNameToString(eventName) : eventName);
          } // do not create a new object as task.data to pass those things
          // just use the global shared one


          taskData.options = options;

          if (once) {
            // if addEventListener with once options, we don't pass it to
            // native addEventListener, instead we keep the once setting
            // and handle ourselves.
            taskData.options.once = false;
          }

          taskData.target = target;
          taskData.capture = capture;
          taskData.eventName = eventName;
          taskData.isExisting = isExisting;
          var data = useGlobalCallback ? OPTIMIZED_ZONE_EVENT_TASK_DATA : undefined; // keep taskData into data to allow onScheduleEventTask to access the task information

          if (data) {
            data.taskData = taskData;
          }

          var task = zone.scheduleEventTask(source, delegate, data, customScheduleFn, customCancelFn); // should clear taskData.target to avoid memory leak
          // issue, https://github.com/angular/angular/issues/20442

          taskData.target = null; // need to clear up taskData because it is a global object

          if (data) {
            data.taskData = null;
          } // have to save those information to task in case
          // application may call task.zone.cancelTask() directly


          if (once) {
            options.once = true;
          }

          if (!(!passiveSupported && typeof task.options === 'boolean')) {
            // if not support passive, and we pass an option object
            // to addEventListener, we should save the options to task
            task.options = options;
          }

          task.target = target;
          task.capture = capture;
          task.eventName = eventName;

          if (isHandleEvent) {
            // save original delegate for compare to check duplicate
            task.originalDelegate = delegate;
          }

          if (!prepend) {
            existingTasks.push(task);
          } else {
            existingTasks.unshift(task);
          }

          if (returnTarget) {
            return target;
          }
        };
      };

      proto[ADD_EVENT_LISTENER] = makeAddListener(nativeAddEventListener, ADD_EVENT_LISTENER_SOURCE, customSchedule, customCancel, returnTarget);

      if (nativePrependEventListener) {
        proto[PREPEND_EVENT_LISTENER] = makeAddListener(nativePrependEventListener, PREPEND_EVENT_LISTENER_SOURCE, customSchedulePrepend, customCancel, returnTarget, true);
      }

      proto[REMOVE_EVENT_LISTENER] = function () {
        var target = this || _global;
        var eventName = arguments[0];

        if (patchOptions && patchOptions.transferEventName) {
          eventName = patchOptions.transferEventName(eventName);
        }

        var options = arguments[2];
        var capture = !options ? false : typeof options === 'boolean' ? true : options.capture;
        var delegate = arguments[1];

        if (!delegate) {
          return nativeRemoveEventListener.apply(this, arguments);
        }

        if (validateHandler && !validateHandler(nativeRemoveEventListener, delegate, target, arguments)) {
          return;
        }

        var symbolEventNames = zoneSymbolEventNames$1[eventName];
        var symbolEventName;

        if (symbolEventNames) {
          symbolEventName = symbolEventNames[capture ? TRUE_STR : FALSE_STR];
        }

        var existingTasks = symbolEventName && target[symbolEventName];

        if (existingTasks) {
          for (var i = 0; i < existingTasks.length; i++) {
            var existingTask = existingTasks[i];

            if (compare(existingTask, delegate)) {
              existingTasks.splice(i, 1); // set isRemoved to data for faster invokeTask check

              existingTask.isRemoved = true;

              if (existingTasks.length === 0) {
                // all tasks for the eventName + capture have gone,
                // remove globalZoneAwareCallback and remove the task cache from target
                existingTask.allRemoved = true;
                target[symbolEventName] = null; // in the target, we have an event listener which is added by on_property
                // such as target.onclick = function() {}, so we need to clear this internal
                // property too if all delegates all removed

                if (typeof eventName === 'string') {
                  var onPropertySymbol = ZONE_SYMBOL_PREFIX + 'ON_PROPERTY' + eventName;
                  target[onPropertySymbol] = null;
                }
              }

              existingTask.zone.cancelTask(existingTask);

              if (returnTarget) {
                return target;
              }

              return;
            }
          }
        } // issue 930, didn't find the event name or callback
        // from zone kept existingTasks, the callback maybe
        // added outside of zone, we need to call native removeEventListener
        // to try to remove it.


        return nativeRemoveEventListener.apply(this, arguments);
      };

      proto[LISTENERS_EVENT_LISTENER] = function () {
        var target = this || _global;
        var eventName = arguments[0];

        if (patchOptions && patchOptions.transferEventName) {
          eventName = patchOptions.transferEventName(eventName);
        }

        var listeners = [];
        var tasks = findEventTasks(target, eventNameToString ? eventNameToString(eventName) : eventName);

        for (var i = 0; i < tasks.length; i++) {
          var task = tasks[i];
          var delegate = task.originalDelegate ? task.originalDelegate : task.callback;
          listeners.push(delegate);
        }

        return listeners;
      };

      proto[REMOVE_ALL_LISTENERS_EVENT_LISTENER] = function () {
        var target = this || _global;
        var eventName = arguments[0];

        if (!eventName) {
          var keys = Object.keys(target);

          for (var i = 0; i < keys.length; i++) {
            var prop = keys[i];
            var match = EVENT_NAME_SYMBOL_REGX.exec(prop);
            var evtName = match && match[1]; // in nodejs EventEmitter, removeListener event is
            // used for monitoring the removeListener call,
            // so just keep removeListener eventListener until
            // all other eventListeners are removed

            if (evtName && evtName !== 'removeListener') {
              this[REMOVE_ALL_LISTENERS_EVENT_LISTENER].call(this, evtName);
            }
          } // remove removeListener listener finally


          this[REMOVE_ALL_LISTENERS_EVENT_LISTENER].call(this, 'removeListener');
        } else {
          if (patchOptions && patchOptions.transferEventName) {
            eventName = patchOptions.transferEventName(eventName);
          }

          var symbolEventNames = zoneSymbolEventNames$1[eventName];

          if (symbolEventNames) {
            var symbolEventName = symbolEventNames[FALSE_STR];
            var symbolCaptureEventName = symbolEventNames[TRUE_STR];
            var tasks = target[symbolEventName];
            var captureTasks = target[symbolCaptureEventName];

            if (tasks) {
              var removeTasks = tasks.slice();

              for (var i = 0; i < removeTasks.length; i++) {
                var task = removeTasks[i];
                var delegate = task.originalDelegate ? task.originalDelegate : task.callback;
                this[REMOVE_EVENT_LISTENER].call(this, eventName, delegate, task.options);
              }
            }

            if (captureTasks) {
              var removeTasks = captureTasks.slice();

              for (var i = 0; i < removeTasks.length; i++) {
                var task = removeTasks[i];
                var delegate = task.originalDelegate ? task.originalDelegate : task.callback;
                this[REMOVE_EVENT_LISTENER].call(this, eventName, delegate, task.options);
              }
            }
          }
        }

        if (returnTarget) {
          return this;
        }
      }; // for native toString patch


      attachOriginToPatched(proto[ADD_EVENT_LISTENER], nativeAddEventListener);
      attachOriginToPatched(proto[REMOVE_EVENT_LISTENER], nativeRemoveEventListener);

      if (nativeRemoveAllListeners) {
        attachOriginToPatched(proto[REMOVE_ALL_LISTENERS_EVENT_LISTENER], nativeRemoveAllListeners);
      }

      if (nativeListeners) {
        attachOriginToPatched(proto[LISTENERS_EVENT_LISTENER], nativeListeners);
      }

      return true;
    }

    var results = [];

    for (var i = 0; i < apis.length; i++) {
      results[i] = patchEventTargetMethods(apis[i], patchOptions);
    }

    return results;
  }

  function findEventTasks(target, eventName) {
    if (!eventName) {
      var foundTasks = [];

      for (var prop in target) {
        var match = EVENT_NAME_SYMBOL_REGX.exec(prop);
        var evtName = match && match[1];

        if (evtName && (!eventName || evtName === eventName)) {
          var tasks = target[prop];

          if (tasks) {
            for (var i = 0; i < tasks.length; i++) {
              foundTasks.push(tasks[i]);
            }
          }
        }
      }

      return foundTasks;
    }

    var symbolEventName = zoneSymbolEventNames$1[eventName];

    if (!symbolEventName) {
      prepareEventNames(eventName);
      symbolEventName = zoneSymbolEventNames$1[eventName];
    }

    var captureFalseTasks = target[symbolEventName[FALSE_STR]];
    var captureTrueTasks = target[symbolEventName[TRUE_STR]];

    if (!captureFalseTasks) {
      return captureTrueTasks ? captureTrueTasks.slice() : [];
    } else {
      return captureTrueTasks ? captureFalseTasks.concat(captureTrueTasks) : captureFalseTasks.slice();
    }
  }

  function patchEventPrototype(global, api) {
    var Event = global['Event'];

    if (Event && Event.prototype) {
      api.patchMethod(Event.prototype, 'stopImmediatePropagation', function (delegate) {
        return function (self, args) {
          self[IMMEDIATE_PROPAGATION_SYMBOL] = true; // we need to call the native stopImmediatePropagation
          // in case in some hybrid application, some part of
          // application will be controlled by zone, some are not

          delegate && delegate.apply(self, args);
        };
      });
    }
  }
  /**
   * @license
   * Copyright Google Inc. All Rights Reserved.
   *
   * Use of this source code is governed by an MIT-style license that can be
   * found in the LICENSE file at https://angular.io/license
   */


  function patchCallbacks(api, target, targetName, method, callbacks) {
    var symbol = Zone.__symbol__(method);

    if (target[symbol]) {
      return;
    }

    var nativeDelegate = target[symbol] = target[method];

    target[method] = function (name, opts, options) {
      if (opts && opts.prototype) {
        callbacks.forEach(function (callback) {
          var source = targetName + "." + method + "::" + callback;
          var prototype = opts.prototype;

          if (prototype.hasOwnProperty(callback)) {
            var descriptor = api.ObjectGetOwnPropertyDescriptor(prototype, callback);

            if (descriptor && descriptor.value) {
              descriptor.value = api.wrapWithCurrentZone(descriptor.value, source);

              api._redefineProperty(opts.prototype, callback, descriptor);
            } else if (prototype[callback]) {
              prototype[callback] = api.wrapWithCurrentZone(prototype[callback], source);
            }
          } else if (prototype[callback]) {
            prototype[callback] = api.wrapWithCurrentZone(prototype[callback], source);
          }
        });
      }

      return nativeDelegate.call(target, name, opts, options);
    };

    api.attachOriginToPatched(target[method], nativeDelegate);
  }
  /**
   * @license
   * Copyright Google Inc. All Rights Reserved.
   *
   * Use of this source code is governed by an MIT-style license that can be
   * found in the LICENSE file at https://angular.io/license
   */


  var globalEventHandlersEventNames = ['abort', 'animationcancel', 'animationend', 'animationiteration', 'auxclick', 'beforeinput', 'blur', 'cancel', 'canplay', 'canplaythrough', 'change', 'compositionstart', 'compositionupdate', 'compositionend', 'cuechange', 'click', 'close', 'contextmenu', 'curechange', 'dblclick', 'drag', 'dragend', 'dragenter', 'dragexit', 'dragleave', 'dragover', 'drop', 'durationchange', 'emptied', 'ended', 'error', 'focus', 'focusin', 'focusout', 'gotpointercapture', 'input', 'invalid', 'keydown', 'keypress', 'keyup', 'load', 'loadstart', 'loadeddata', 'loadedmetadata', 'lostpointercapture', 'mousedown', 'mouseenter', 'mouseleave', 'mousemove', 'mouseout', 'mouseover', 'mouseup', 'mousewheel', 'orientationchange', 'pause', 'play', 'playing', 'pointercancel', 'pointerdown', 'pointerenter', 'pointerleave', 'pointerlockchange', 'mozpointerlockchange', 'webkitpointerlockerchange', 'pointerlockerror', 'mozpointerlockerror', 'webkitpointerlockerror', 'pointermove', 'pointout', 'pointerover', 'pointerup', 'progress', 'ratechange', 'reset', 'resize', 'scroll', 'seeked', 'seeking', 'select', 'selectionchange', 'selectstart', 'show', 'sort', 'stalled', 'submit', 'suspend', 'timeupdate', 'volumechange', 'touchcancel', 'touchmove', 'touchstart', 'touchend', 'transitioncancel', 'transitionend', 'waiting', 'wheel'];
  var documentEventNames = ['afterscriptexecute', 'beforescriptexecute', 'DOMContentLoaded', 'freeze', 'fullscreenchange', 'mozfullscreenchange', 'webkitfullscreenchange', 'msfullscreenchange', 'fullscreenerror', 'mozfullscreenerror', 'webkitfullscreenerror', 'msfullscreenerror', 'readystatechange', 'visibilitychange', 'resume'];
  var windowEventNames = ['absolutedeviceorientation', 'afterinput', 'afterprint', 'appinstalled', 'beforeinstallprompt', 'beforeprint', 'beforeunload', 'devicelight', 'devicemotion', 'deviceorientation', 'deviceorientationabsolute', 'deviceproximity', 'hashchange', 'languagechange', 'message', 'mozbeforepaint', 'offline', 'online', 'paint', 'pageshow', 'pagehide', 'popstate', 'rejectionhandled', 'storage', 'unhandledrejection', 'unload', 'userproximity', 'vrdisplayconnected', 'vrdisplaydisconnected', 'vrdisplaypresentchange'];
  var htmlElementEventNames = ['beforecopy', 'beforecut', 'beforepaste', 'copy', 'cut', 'paste', 'dragstart', 'loadend', 'animationstart', 'search', 'transitionrun', 'transitionstart', 'webkitanimationend', 'webkitanimationiteration', 'webkitanimationstart', 'webkittransitionend'];
  var mediaElementEventNames = ['encrypted', 'waitingforkey', 'msneedkey', 'mozinterruptbegin', 'mozinterruptend'];
  var ieElementEventNames = ['activate', 'afterupdate', 'ariarequest', 'beforeactivate', 'beforedeactivate', 'beforeeditfocus', 'beforeupdate', 'cellchange', 'controlselect', 'dataavailable', 'datasetchanged', 'datasetcomplete', 'errorupdate', 'filterchange', 'layoutcomplete', 'losecapture', 'move', 'moveend', 'movestart', 'propertychange', 'resizeend', 'resizestart', 'rowenter', 'rowexit', 'rowsdelete', 'rowsinserted', 'command', 'compassneedscalibration', 'deactivate', 'help', 'mscontentzoom', 'msmanipulationstatechanged', 'msgesturechange', 'msgesturedoubletap', 'msgestureend', 'msgesturehold', 'msgesturestart', 'msgesturetap', 'msgotpointercapture', 'msinertiastart', 'mslostpointercapture', 'mspointercancel', 'mspointerdown', 'mspointerenter', 'mspointerhover', 'mspointerleave', 'mspointermove', 'mspointerout', 'mspointerover', 'mspointerup', 'pointerout', 'mssitemodejumplistitemremoved', 'msthumbnailclick', 'stop', 'storagecommit'];
  var webglEventNames = ['webglcontextrestored', 'webglcontextlost', 'webglcontextcreationerror'];
  var formEventNames = ['autocomplete', 'autocompleteerror'];
  var detailEventNames = ['toggle'];
  var frameEventNames = ['load'];
  var frameSetEventNames = ['blur', 'error', 'focus', 'load', 'resize', 'scroll', 'messageerror'];
  var marqueeEventNames = ['bounce', 'finish', 'start'];
  var XMLHttpRequestEventNames = ['loadstart', 'progress', 'abort', 'error', 'load', 'progress', 'timeout', 'loadend', 'readystatechange'];
  var IDBIndexEventNames = ['upgradeneeded', 'complete', 'abort', 'success', 'error', 'blocked', 'versionchange', 'close'];
  var websocketEventNames = ['close', 'error', 'open', 'message'];
  var workerEventNames = ['error', 'message'];
  var eventNames = globalEventHandlersEventNames.concat(webglEventNames, formEventNames, detailEventNames, documentEventNames, windowEventNames, htmlElementEventNames, ieElementEventNames);

  function filterProperties(target, onProperties, ignoreProperties) {
    if (!ignoreProperties || ignoreProperties.length === 0) {
      return onProperties;
    }

    var tip = ignoreProperties.filter(function (ip) {
      return ip.target === target;
    });

    if (!tip || tip.length === 0) {
      return onProperties;
    }

    var targetIgnoreProperties = tip[0].ignoreProperties;
    return onProperties.filter(function (op) {
      return targetIgnoreProperties.indexOf(op) === -1;
    });
  }

  function patchFilteredProperties(target, onProperties, ignoreProperties, prototype) {
    // check whether target is available, sometimes target will be undefined
    // because different browser or some 3rd party plugin.
    if (!target) {
      return;
    }

    var filteredProperties = filterProperties(target, onProperties, ignoreProperties);
    patchOnProperties(target, filteredProperties, prototype);
  }

  function propertyDescriptorPatch(api, _global) {
    if (isNode && !isMix) {
      return;
    }

    if (Zone[api.symbol('patchEvents')]) {
      // events are already been patched by legacy patch.
      return;
    }

    var supportsWebSocket = typeof WebSocket !== 'undefined';
    var ignoreProperties = _global['__Zone_ignore_on_properties']; // for browsers that we can patch the descriptor:  Chrome & Firefox

    if (isBrowser) {
      var internalWindow_1 = window;
      var ignoreErrorProperties = isIE ? [{
        target: internalWindow_1,
        ignoreProperties: ['error']
      }] : []; // in IE/Edge, onProp not exist in window object, but in WindowPrototype
      // so we need to pass WindowPrototype to check onProp exist or not

      patchFilteredProperties(internalWindow_1, eventNames.concat(['messageerror']), ignoreProperties ? ignoreProperties.concat(ignoreErrorProperties) : ignoreProperties, ObjectGetPrototypeOf(internalWindow_1));
      patchFilteredProperties(Document.prototype, eventNames, ignoreProperties);

      if (typeof internalWindow_1['SVGElement'] !== 'undefined') {
        patchFilteredProperties(internalWindow_1['SVGElement'].prototype, eventNames, ignoreProperties);
      }

      patchFilteredProperties(Element.prototype, eventNames, ignoreProperties);
      patchFilteredProperties(HTMLElement.prototype, eventNames, ignoreProperties);
      patchFilteredProperties(HTMLMediaElement.prototype, mediaElementEventNames, ignoreProperties);
      patchFilteredProperties(HTMLFrameSetElement.prototype, windowEventNames.concat(frameSetEventNames), ignoreProperties);
      patchFilteredProperties(HTMLBodyElement.prototype, windowEventNames.concat(frameSetEventNames), ignoreProperties);
      patchFilteredProperties(HTMLFrameElement.prototype, frameEventNames, ignoreProperties);
      patchFilteredProperties(HTMLIFrameElement.prototype, frameEventNames, ignoreProperties);
      var HTMLMarqueeElement_1 = internalWindow_1['HTMLMarqueeElement'];

      if (HTMLMarqueeElement_1) {
        patchFilteredProperties(HTMLMarqueeElement_1.prototype, marqueeEventNames, ignoreProperties);
      }

      var Worker_1 = internalWindow_1['Worker'];

      if (Worker_1) {
        patchFilteredProperties(Worker_1.prototype, workerEventNames, ignoreProperties);
      }
    }

    var XMLHttpRequest = _global['XMLHttpRequest'];

    if (XMLHttpRequest) {
      // XMLHttpRequest is not available in ServiceWorker, so we need to check here
      patchFilteredProperties(XMLHttpRequest.prototype, XMLHttpRequestEventNames, ignoreProperties);
    }

    var XMLHttpRequestEventTarget = _global['XMLHttpRequestEventTarget'];

    if (XMLHttpRequestEventTarget) {
      patchFilteredProperties(XMLHttpRequestEventTarget && XMLHttpRequestEventTarget.prototype, XMLHttpRequestEventNames, ignoreProperties);
    }

    if (typeof IDBIndex !== 'undefined') {
      patchFilteredProperties(IDBIndex.prototype, IDBIndexEventNames, ignoreProperties);
      patchFilteredProperties(IDBRequest.prototype, IDBIndexEventNames, ignoreProperties);
      patchFilteredProperties(IDBOpenDBRequest.prototype, IDBIndexEventNames, ignoreProperties);
      patchFilteredProperties(IDBDatabase.prototype, IDBIndexEventNames, ignoreProperties);
      patchFilteredProperties(IDBTransaction.prototype, IDBIndexEventNames, ignoreProperties);
      patchFilteredProperties(IDBCursor.prototype, IDBIndexEventNames, ignoreProperties);
    }

    if (supportsWebSocket) {
      patchFilteredProperties(WebSocket.prototype, websocketEventNames, ignoreProperties);
    }
  }
  /**
   * @license
   * Copyright Google Inc. All Rights Reserved.
   *
   * Use of this source code is governed by an MIT-style license that can be
   * found in the LICENSE file at https://angular.io/license
   */


  Zone.__load_patch('util', function (global, Zone, api) {
    api.patchOnProperties = patchOnProperties;
    api.patchMethod = patchMethod;
    api.bindArguments = bindArguments;
    api.patchMacroTask = patchMacroTask; // In earlier version of zone.js (<0.9.0), we use env name `__zone_symbol__BLACK_LISTED_EVENTS` to
    // define which events will not be patched by `Zone.js`.
    // In newer version (>=0.9.0), we change the env name to `__zone_symbol__UNPATCHED_EVENTS` to keep
    // the name consistent with angular repo.
    // The  `__zone_symbol__BLACK_LISTED_EVENTS` is deprecated, but it is still be supported for
    // backwards compatibility.

    var SYMBOL_BLACK_LISTED_EVENTS = Zone.__symbol__('BLACK_LISTED_EVENTS');

    var SYMBOL_UNPATCHED_EVENTS = Zone.__symbol__('UNPATCHED_EVENTS');

    if (global[SYMBOL_UNPATCHED_EVENTS]) {
      global[SYMBOL_BLACK_LISTED_EVENTS] = global[SYMBOL_UNPATCHED_EVENTS];
    }

    if (global[SYMBOL_BLACK_LISTED_EVENTS]) {
      Zone[SYMBOL_BLACK_LISTED_EVENTS] = Zone[SYMBOL_UNPATCHED_EVENTS] = global[SYMBOL_BLACK_LISTED_EVENTS];
    }

    api.patchEventPrototype = patchEventPrototype;
    api.patchEventTarget = patchEventTarget;
    api.isIEOrEdge = isIEOrEdge;
    api.ObjectDefineProperty = ObjectDefineProperty;
    api.ObjectGetOwnPropertyDescriptor = ObjectGetOwnPropertyDescriptor;
    api.ObjectCreate = ObjectCreate;
    api.ArraySlice = ArraySlice;
    api.patchClass = patchClass;
    api.wrapWithCurrentZone = wrapWithCurrentZone;
    api.filterProperties = filterProperties;
    api.attachOriginToPatched = attachOriginToPatched;
    api._redefineProperty = Object.defineProperty;
    api.patchCallbacks = patchCallbacks;

    api.getGlobalObjects = function () {
      return {
        globalSources: globalSources,
        zoneSymbolEventNames: zoneSymbolEventNames$1,
        eventNames: eventNames,
        isBrowser: isBrowser,
        isMix: isMix,
        isNode: isNode,
        TRUE_STR: TRUE_STR,
        FALSE_STR: FALSE_STR,
        ZONE_SYMBOL_PREFIX: ZONE_SYMBOL_PREFIX,
        ADD_EVENT_LISTENER_STR: ADD_EVENT_LISTENER_STR,
        REMOVE_EVENT_LISTENER_STR: REMOVE_EVENT_LISTENER_STR
      };
    };
  });
  /**
   * @license
   * Copyright Google Inc. All Rights Reserved.
   *
   * Use of this source code is governed by an MIT-style license that can be
   * found in the LICENSE file at https://angular.io/license
   */

  /*
   * This is necessary for Chrome and Chrome mobile, to enable
   * things like redefining `createdCallback` on an element.
   */


  var zoneSymbol$1;

  var _defineProperty;

  var _getOwnPropertyDescriptor;

  var _create;

  var unconfigurablesKey;

  function propertyPatch() {
    zoneSymbol$1 = Zone.__symbol__;
    _defineProperty = Object[zoneSymbol$1('defineProperty')] = Object.defineProperty;
    _getOwnPropertyDescriptor = Object[zoneSymbol$1('getOwnPropertyDescriptor')] = Object.getOwnPropertyDescriptor;
    _create = Object.create;
    unconfigurablesKey = zoneSymbol$1('unconfigurables');

    Object.defineProperty = function (obj, prop, desc) {
      if (isUnconfigurable(obj, prop)) {
        throw new TypeError('Cannot assign to read only property \'' + prop + '\' of ' + obj);
      }

      var originalConfigurableFlag = desc.configurable;

      if (prop !== 'prototype') {
        desc = rewriteDescriptor(obj, prop, desc);
      }

      return _tryDefineProperty(obj, prop, desc, originalConfigurableFlag);
    };

    Object.defineProperties = function (obj, props) {
      Object.keys(props).forEach(function (prop) {
        Object.defineProperty(obj, prop, props[prop]);
      });
      return obj;
    };

    Object.create = function (obj, proto) {
      if (typeof proto === 'object' && !Object.isFrozen(proto)) {
        Object.keys(proto).forEach(function (prop) {
          proto[prop] = rewriteDescriptor(obj, prop, proto[prop]);
        });
      }

      return _create(obj, proto);
    };

    Object.getOwnPropertyDescriptor = function (obj, prop) {
      var desc = _getOwnPropertyDescriptor(obj, prop);

      if (desc && isUnconfigurable(obj, prop)) {
        desc.configurable = false;
      }

      return desc;
    };
  }

  function _redefineProperty(obj, prop, desc) {
    var originalConfigurableFlag = desc.configurable;
    desc = rewriteDescriptor(obj, prop, desc);
    return _tryDefineProperty(obj, prop, desc, originalConfigurableFlag);
  }

  function isUnconfigurable(obj, prop) {
    return obj && obj[unconfigurablesKey] && obj[unconfigurablesKey][prop];
  }

  function rewriteDescriptor(obj, prop, desc) {
    // issue-927, if the desc is frozen, don't try to change the desc
    if (!Object.isFrozen(desc)) {
      desc.configurable = true;
    }

    if (!desc.configurable) {
      // issue-927, if the obj is frozen, don't try to set the desc to obj
      if (!obj[unconfigurablesKey] && !Object.isFrozen(obj)) {
        _defineProperty(obj, unconfigurablesKey, {
          writable: true,
          value: {}
        });
      }

      if (obj[unconfigurablesKey]) {
        obj[unconfigurablesKey][prop] = true;
      }
    }

    return desc;
  }

  function _tryDefineProperty(obj, prop, desc, originalConfigurableFlag) {
    try {
      return _defineProperty(obj, prop, desc);
    } catch (error) {
      if (desc.configurable) {
        // In case of errors, when the configurable flag was likely set by rewriteDescriptor(), let's
        // retry with the original flag value
        if (typeof originalConfigurableFlag == 'undefined') {
          delete desc.configurable;
        } else {
          desc.configurable = originalConfigurableFlag;
        }

        try {
          return _defineProperty(obj, prop, desc);
        } catch (error) {
          var descJson = null;

          try {
            descJson = JSON.stringify(desc);
          } catch (error) {
            descJson = desc.toString();
          }

          console.log("Attempting to configure '" + prop + "' with descriptor '" + descJson + "' on object '" + obj + "' and got error, giving up: " + error);
        }
      } else {
        throw error;
      }
    }
  }
  /**
   * @license
   * Copyright Google Inc. All Rights Reserved.
   *
   * Use of this source code is governed by an MIT-style license that can be
   * found in the LICENSE file at https://angular.io/license
   */


  function eventTargetLegacyPatch(_global, api) {
    var _a = api.getGlobalObjects(),
        eventNames = _a.eventNames,
        globalSources = _a.globalSources,
        zoneSymbolEventNames = _a.zoneSymbolEventNames,
        TRUE_STR = _a.TRUE_STR,
        FALSE_STR = _a.FALSE_STR,
        ZONE_SYMBOL_PREFIX = _a.ZONE_SYMBOL_PREFIX;

    var WTF_ISSUE_555 = 'Anchor,Area,Audio,BR,Base,BaseFont,Body,Button,Canvas,Content,DList,Directory,Div,Embed,FieldSet,Font,Form,Frame,FrameSet,HR,Head,Heading,Html,IFrame,Image,Input,Keygen,LI,Label,Legend,Link,Map,Marquee,Media,Menu,Meta,Meter,Mod,OList,Object,OptGroup,Option,Output,Paragraph,Pre,Progress,Quote,Script,Select,Source,Span,Style,TableCaption,TableCell,TableCol,Table,TableRow,TableSection,TextArea,Title,Track,UList,Unknown,Video';
    var NO_EVENT_TARGET = 'ApplicationCache,EventSource,FileReader,InputMethodContext,MediaController,MessagePort,Node,Performance,SVGElementInstance,SharedWorker,TextTrack,TextTrackCue,TextTrackList,WebKitNamedFlow,Window,Worker,WorkerGlobalScope,XMLHttpRequest,XMLHttpRequestEventTarget,XMLHttpRequestUpload,IDBRequest,IDBOpenDBRequest,IDBDatabase,IDBTransaction,IDBCursor,DBIndex,WebSocket'.split(',');
    var EVENT_TARGET = 'EventTarget';
    var apis = [];
    var isWtf = _global['wtf'];
    var WTF_ISSUE_555_ARRAY = WTF_ISSUE_555.split(',');

    if (isWtf) {
      // Workaround for: https://github.com/google/tracing-framework/issues/555
      apis = WTF_ISSUE_555_ARRAY.map(function (v) {
        return 'HTML' + v + 'Element';
      }).concat(NO_EVENT_TARGET);
    } else if (_global[EVENT_TARGET]) {
      apis.push(EVENT_TARGET);
    } else {
      // Note: EventTarget is not available in all browsers,
      // if it's not available, we instead patch the APIs in the IDL that inherit from EventTarget
      apis = NO_EVENT_TARGET;
    }

    var isDisableIECheck = _global['__Zone_disable_IE_check'] || false;
    var isEnableCrossContextCheck = _global['__Zone_enable_cross_context_check'] || false;
    var ieOrEdge = api.isIEOrEdge();
    var ADD_EVENT_LISTENER_SOURCE = '.addEventListener:';
    var FUNCTION_WRAPPER = '[object FunctionWrapper]';
    var BROWSER_TOOLS = 'function __BROWSERTOOLS_CONSOLE_SAFEFUNC() { [native code] }';
    var pointerEventsMap = {
      'MSPointerCancel': 'pointercancel',
      'MSPointerDown': 'pointerdown',
      'MSPointerEnter': 'pointerenter',
      'MSPointerHover': 'pointerhover',
      'MSPointerLeave': 'pointerleave',
      'MSPointerMove': 'pointermove',
      'MSPointerOut': 'pointerout',
      'MSPointerOver': 'pointerover',
      'MSPointerUp': 'pointerup'
    }; //  predefine all __zone_symbol__ + eventName + true/false string

    for (var i = 0; i < eventNames.length; i++) {
      var eventName = eventNames[i];
      var falseEventName = eventName + FALSE_STR;
      var trueEventName = eventName + TRUE_STR;
      var symbol = ZONE_SYMBOL_PREFIX + falseEventName;
      var symbolCapture = ZONE_SYMBOL_PREFIX + trueEventName;
      zoneSymbolEventNames[eventName] = {};
      zoneSymbolEventNames[eventName][FALSE_STR] = symbol;
      zoneSymbolEventNames[eventName][TRUE_STR] = symbolCapture;
    } //  predefine all task.source string


    for (var i = 0; i < WTF_ISSUE_555_ARRAY.length; i++) {
      var target = WTF_ISSUE_555_ARRAY[i];
      var targets = globalSources[target] = {};

      for (var j = 0; j < eventNames.length; j++) {
        var eventName = eventNames[j];
        targets[eventName] = target + ADD_EVENT_LISTENER_SOURCE + eventName;
      }
    }

    var checkIEAndCrossContext = function checkIEAndCrossContext(nativeDelegate, delegate, target, args) {
      if (!isDisableIECheck && ieOrEdge) {
        if (isEnableCrossContextCheck) {
          try {
            var testString = delegate.toString();

            if (testString === FUNCTION_WRAPPER || testString == BROWSER_TOOLS) {
              nativeDelegate.apply(target, args);
              return false;
            }
          } catch (error) {
            nativeDelegate.apply(target, args);
            return false;
          }
        } else {
          var testString = delegate.toString();

          if (testString === FUNCTION_WRAPPER || testString == BROWSER_TOOLS) {
            nativeDelegate.apply(target, args);
            return false;
          }
        }
      } else if (isEnableCrossContextCheck) {
        try {
          delegate.toString();
        } catch (error) {
          nativeDelegate.apply(target, args);
          return false;
        }
      }

      return true;
    };

    var apiTypes = [];

    for (var i = 0; i < apis.length; i++) {
      var type = _global[apis[i]];
      apiTypes.push(type && type.prototype);
    } // vh is validateHandler to check event handler
    // is valid or not(for security check)


    api.patchEventTarget(_global, apiTypes, {
      vh: checkIEAndCrossContext,
      transferEventName: function transferEventName(eventName) {
        var pointerEventName = pointerEventsMap[eventName];
        return pointerEventName || eventName;
      }
    });
    Zone[api.symbol('patchEventTarget')] = !!_global[EVENT_TARGET];
    return true;
  }
  /**
   * @license
   * Copyright Google Inc. All Rights Reserved.
   *
   * Use of this source code is governed by an MIT-style license that can be
   * found in the LICENSE file at https://angular.io/license
   */
  // we have to patch the instance since the proto is non-configurable


  function apply(api, _global) {
    var _a = api.getGlobalObjects(),
        ADD_EVENT_LISTENER_STR = _a.ADD_EVENT_LISTENER_STR,
        REMOVE_EVENT_LISTENER_STR = _a.REMOVE_EVENT_LISTENER_STR;

    var WS = _global.WebSocket; // On Safari window.EventTarget doesn't exist so need to patch WS add/removeEventListener
    // On older Chrome, no need since EventTarget was already patched

    if (!_global.EventTarget) {
      api.patchEventTarget(_global, [WS.prototype]);
    }

    _global.WebSocket = function (x, y) {
      var socket = arguments.length > 1 ? new WS(x, y) : new WS(x);
      var proxySocket;
      var proxySocketProto; // Safari 7.0 has non-configurable own 'onmessage' and friends properties on the socket instance

      var onmessageDesc = api.ObjectGetOwnPropertyDescriptor(socket, 'onmessage');

      if (onmessageDesc && onmessageDesc.configurable === false) {
        proxySocket = api.ObjectCreate(socket); // socket have own property descriptor 'onopen', 'onmessage', 'onclose', 'onerror'
        // but proxySocket not, so we will keep socket as prototype and pass it to
        // patchOnProperties method

        proxySocketProto = socket;
        [ADD_EVENT_LISTENER_STR, REMOVE_EVENT_LISTENER_STR, 'send', 'close'].forEach(function (propName) {
          proxySocket[propName] = function () {
            var args = api.ArraySlice.call(arguments);

            if (propName === ADD_EVENT_LISTENER_STR || propName === REMOVE_EVENT_LISTENER_STR) {
              var eventName = args.length > 0 ? args[0] : undefined;

              if (eventName) {
                var propertySymbol = Zone.__symbol__('ON_PROPERTY' + eventName);

                socket[propertySymbol] = proxySocket[propertySymbol];
              }
            }

            return socket[propName].apply(socket, args);
          };
        });
      } else {
        // we can patch the real socket
        proxySocket = socket;
      }

      api.patchOnProperties(proxySocket, ['close', 'error', 'message', 'open'], proxySocketProto);
      return proxySocket;
    };

    var globalWebSocket = _global['WebSocket'];

    for (var prop in WS) {
      globalWebSocket[prop] = WS[prop];
    }
  }
  /**
   * @license
   * Copyright Google Inc. All Rights Reserved.
   *
   * Use of this source code is governed by an MIT-style license that can be
   * found in the LICENSE file at https://angular.io/license
   */


  function propertyDescriptorLegacyPatch(api, _global) {
    var _a = api.getGlobalObjects(),
        isNode = _a.isNode,
        isMix = _a.isMix;

    if (isNode && !isMix) {
      return;
    }

    if (!canPatchViaPropertyDescriptor(api, _global)) {
      var supportsWebSocket = typeof WebSocket !== 'undefined'; // Safari, Android browsers (Jelly Bean)

      patchViaCapturingAllTheEvents(api);
      api.patchClass('XMLHttpRequest');

      if (supportsWebSocket) {
        apply(api, _global);
      }

      Zone[api.symbol('patchEvents')] = true;
    }
  }

  function canPatchViaPropertyDescriptor(api, _global) {
    var _a = api.getGlobalObjects(),
        isBrowser = _a.isBrowser,
        isMix = _a.isMix;

    if ((isBrowser || isMix) && !api.ObjectGetOwnPropertyDescriptor(HTMLElement.prototype, 'onclick') && typeof Element !== 'undefined') {
      // WebKit https://bugs.webkit.org/show_bug.cgi?id=134364
      // IDL interface attributes are not configurable
      var desc = api.ObjectGetOwnPropertyDescriptor(Element.prototype, 'onclick');
      if (desc && !desc.configurable) return false; // try to use onclick to detect whether we can patch via propertyDescriptor
      // because XMLHttpRequest is not available in service worker

      if (desc) {
        api.ObjectDefineProperty(Element.prototype, 'onclick', {
          enumerable: true,
          configurable: true,
          get: function get() {
            return true;
          }
        });
        var div = document.createElement('div');
        var result = !!div.onclick;
        api.ObjectDefineProperty(Element.prototype, 'onclick', desc);
        return result;
      }
    }

    var XMLHttpRequest = _global['XMLHttpRequest'];

    if (!XMLHttpRequest) {
      // XMLHttpRequest is not available in service worker
      return false;
    }

    var ON_READY_STATE_CHANGE = 'onreadystatechange';
    var XMLHttpRequestPrototype = XMLHttpRequest.prototype;
    var xhrDesc = api.ObjectGetOwnPropertyDescriptor(XMLHttpRequestPrototype, ON_READY_STATE_CHANGE); // add enumerable and configurable here because in opera
    // by default XMLHttpRequest.prototype.onreadystatechange is undefined
    // without adding enumerable and configurable will cause onreadystatechange
    // non-configurable
    // and if XMLHttpRequest.prototype.onreadystatechange is undefined,
    // we should set a real desc instead a fake one

    if (xhrDesc) {
      api.ObjectDefineProperty(XMLHttpRequestPrototype, ON_READY_STATE_CHANGE, {
        enumerable: true,
        configurable: true,
        get: function get() {
          return true;
        }
      });
      var req = new XMLHttpRequest();
      var result = !!req.onreadystatechange; // restore original desc

      api.ObjectDefineProperty(XMLHttpRequestPrototype, ON_READY_STATE_CHANGE, xhrDesc || {});
      return result;
    } else {
      var SYMBOL_FAKE_ONREADYSTATECHANGE_1 = api.symbol('fake');
      api.ObjectDefineProperty(XMLHttpRequestPrototype, ON_READY_STATE_CHANGE, {
        enumerable: true,
        configurable: true,
        get: function get() {
          return this[SYMBOL_FAKE_ONREADYSTATECHANGE_1];
        },
        set: function set(value) {
          this[SYMBOL_FAKE_ONREADYSTATECHANGE_1] = value;
        }
      });
      var req = new XMLHttpRequest();

      var detectFunc = function detectFunc() {};

      req.onreadystatechange = detectFunc;
      var result = req[SYMBOL_FAKE_ONREADYSTATECHANGE_1] === detectFunc;
      req.onreadystatechange = null;
      return result;
    }
  } // Whenever any eventListener fires, we check the eventListener target and all parents
  // for `onwhatever` properties and replace them with zone-bound functions
  // - Chrome (for now)


  function patchViaCapturingAllTheEvents(api) {
    var eventNames = api.getGlobalObjects().eventNames;
    var unboundKey = api.symbol('unbound');

    var _loop_4 = function _loop_4(i) {
      var property = eventNames[i];
      var onproperty = 'on' + property;
      self.addEventListener(property, function (event) {
        var elt = event.target,
            bound,
            source;

        if (elt) {
          source = elt.constructor['name'] + '.' + onproperty;
        } else {
          source = 'unknown.' + onproperty;
        }

        while (elt) {
          if (elt[onproperty] && !elt[onproperty][unboundKey]) {
            bound = api.wrapWithCurrentZone(elt[onproperty], source);
            bound[unboundKey] = elt[onproperty];
            elt[onproperty] = bound;
          }

          elt = elt.parentElement;
        }
      }, true);
    };

    for (var i = 0; i < eventNames.length; i++) {
      _loop_4(i);
    }
  }
  /**
   * @license
   * Copyright Google Inc. All Rights Reserved.
   *
   * Use of this source code is governed by an MIT-style license that can be
   * found in the LICENSE file at https://angular.io/license
   */


  function registerElementPatch(_global, api) {
    var _a = api.getGlobalObjects(),
        isBrowser = _a.isBrowser,
        isMix = _a.isMix;

    if (!isBrowser && !isMix || !('registerElement' in _global.document)) {
      return;
    }

    var callbacks = ['createdCallback', 'attachedCallback', 'detachedCallback', 'attributeChangedCallback'];
    api.patchCallbacks(api, document, 'Document', 'registerElement', callbacks);
  }
  /**
   * @license
   * Copyright Google Inc. All Rights Reserved.
   *
   * Use of this source code is governed by an MIT-style license that can be
   * found in the LICENSE file at https://angular.io/license
   */


  (function (_global) {
    var symbolPrefix = _global['__Zone_symbol_prefix'] || '__zone_symbol__';

    function __symbol__(name) {
      return symbolPrefix + name;
    }

    _global[__symbol__('legacyPatch')] = function () {
      var Zone = _global['Zone'];

      Zone.__load_patch('defineProperty', function (global, Zone, api) {
        api._redefineProperty = _redefineProperty;
        propertyPatch();
      });

      Zone.__load_patch('registerElement', function (global, Zone, api) {
        registerElementPatch(global, api);
      });

      Zone.__load_patch('EventTargetLegacy', function (global, Zone, api) {
        eventTargetLegacyPatch(global, api);
        propertyDescriptorLegacyPatch(api, global);
      });
    };
  })(typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {});
  /**
   * @license
   * Copyright Google Inc. All Rights Reserved.
   *
   * Use of this source code is governed by an MIT-style license that can be
   * found in the LICENSE file at https://angular.io/license
   */


  var taskSymbol = zoneSymbol('zoneTask');

  function patchTimer(window, setName, cancelName, nameSuffix) {
    var setNative = null;
    var clearNative = null;
    setName += nameSuffix;
    cancelName += nameSuffix;
    var tasksByHandleId = {};

    function scheduleTask(task) {
      var data = task.data;

      function timer() {
        try {
          task.invoke.apply(this, arguments);
        } finally {
          // issue-934, task will be cancelled
          // even it is a periodic task such as
          // setInterval
          if (!(task.data && task.data.isPeriodic)) {
            if (typeof data.handleId === 'number') {
              // in non-nodejs env, we remove timerId
              // from local cache
              delete tasksByHandleId[data.handleId];
            } else if (data.handleId) {
              // Node returns complex objects as handleIds
              // we remove task reference from timer object
              data.handleId[taskSymbol] = null;
            }
          }
        }
      }

      data.args[0] = timer;
      data.handleId = setNative.apply(window, data.args);
      return task;
    }

    function clearTask(task) {
      return clearNative(task.data.handleId);
    }

    setNative = patchMethod(window, setName, function (delegate) {
      return function (self, args) {
        if (typeof args[0] === 'function') {
          var options = {
            isPeriodic: nameSuffix === 'Interval',
            delay: nameSuffix === 'Timeout' || nameSuffix === 'Interval' ? args[1] || 0 : undefined,
            args: args
          };
          var task = scheduleMacroTaskWithCurrentZone(setName, args[0], options, scheduleTask, clearTask);

          if (!task) {
            return task;
          } // Node.js must additionally support the ref and unref functions.


          var handle = task.data.handleId;

          if (typeof handle === 'number') {
            // for non nodejs env, we save handleId: task
            // mapping in local cache for clearTimeout
            tasksByHandleId[handle] = task;
          } else if (handle) {
            // for nodejs env, we save task
            // reference in timerId Object for clearTimeout
            handle[taskSymbol] = task;
          } // check whether handle is null, because some polyfill or browser
          // may return undefined from setTimeout/setInterval/setImmediate/requestAnimationFrame


          if (handle && handle.ref && handle.unref && typeof handle.ref === 'function' && typeof handle.unref === 'function') {
            task.ref = handle.ref.bind(handle);
            task.unref = handle.unref.bind(handle);
          }

          if (typeof handle === 'number' || handle) {
            return handle;
          }

          return task;
        } else {
          // cause an error by calling it directly.
          return delegate.apply(window, args);
        }
      };
    });
    clearNative = patchMethod(window, cancelName, function (delegate) {
      return function (self, args) {
        var id = args[0];
        var task;

        if (typeof id === 'number') {
          // non nodejs env.
          task = tasksByHandleId[id];
        } else {
          // nodejs env.
          task = id && id[taskSymbol]; // other environments.

          if (!task) {
            task = id;
          }
        }

        if (task && typeof task.type === 'string') {
          if (task.state !== 'notScheduled' && (task.cancelFn && task.data.isPeriodic || task.runCount === 0)) {
            if (typeof id === 'number') {
              delete tasksByHandleId[id];
            } else if (id) {
              id[taskSymbol] = null;
            } // Do not cancel already canceled functions


            task.zone.cancelTask(task);
          }
        } else {
          // cause an error by calling it directly.
          delegate.apply(window, args);
        }
      };
    });
  }
  /**
   * @license
   * Copyright Google Inc. All Rights Reserved.
   *
   * Use of this source code is governed by an MIT-style license that can be
   * found in the LICENSE file at https://angular.io/license
   */


  function patchCustomElements(_global, api) {
    var _a = api.getGlobalObjects(),
        isBrowser = _a.isBrowser,
        isMix = _a.isMix;

    if (!isBrowser && !isMix || !_global['customElements'] || !('customElements' in _global)) {
      return;
    }

    var callbacks = ['connectedCallback', 'disconnectedCallback', 'adoptedCallback', 'attributeChangedCallback'];
    api.patchCallbacks(api, _global.customElements, 'customElements', 'define', callbacks);
  }
  /**
   * @license
   * Copyright Google Inc. All Rights Reserved.
   *
   * Use of this source code is governed by an MIT-style license that can be
   * found in the LICENSE file at https://angular.io/license
   */


  function eventTargetPatch(_global, api) {
    if (Zone[api.symbol('patchEventTarget')]) {
      // EventTarget is already patched.
      return;
    }

    var _a = api.getGlobalObjects(),
        eventNames = _a.eventNames,
        zoneSymbolEventNames = _a.zoneSymbolEventNames,
        TRUE_STR = _a.TRUE_STR,
        FALSE_STR = _a.FALSE_STR,
        ZONE_SYMBOL_PREFIX = _a.ZONE_SYMBOL_PREFIX; //  predefine all __zone_symbol__ + eventName + true/false string


    for (var i = 0; i < eventNames.length; i++) {
      var eventName = eventNames[i];
      var falseEventName = eventName + FALSE_STR;
      var trueEventName = eventName + TRUE_STR;
      var symbol = ZONE_SYMBOL_PREFIX + falseEventName;
      var symbolCapture = ZONE_SYMBOL_PREFIX + trueEventName;
      zoneSymbolEventNames[eventName] = {};
      zoneSymbolEventNames[eventName][FALSE_STR] = symbol;
      zoneSymbolEventNames[eventName][TRUE_STR] = symbolCapture;
    }

    var EVENT_TARGET = _global['EventTarget'];

    if (!EVENT_TARGET || !EVENT_TARGET.prototype) {
      return;
    }

    api.patchEventTarget(_global, [EVENT_TARGET && EVENT_TARGET.prototype]);
    return true;
  }

  function patchEvent(global, api) {
    api.patchEventPrototype(global, api);
  }
  /**
   * @license
   * Copyright Google Inc. All Rights Reserved.
   *
   * Use of this source code is governed by an MIT-style license that can be
   * found in the LICENSE file at https://angular.io/license
   */


  Zone.__load_patch('legacy', function (global) {
    var legacyPatch = global[Zone.__symbol__('legacyPatch')];

    if (legacyPatch) {
      legacyPatch();
    }
  });

  Zone.__load_patch('timers', function (global) {
    var set = 'set';
    var clear = 'clear';
    patchTimer(global, set, clear, 'Timeout');
    patchTimer(global, set, clear, 'Interval');
    patchTimer(global, set, clear, 'Immediate');
  });

  Zone.__load_patch('requestAnimationFrame', function (global) {
    patchTimer(global, 'request', 'cancel', 'AnimationFrame');
    patchTimer(global, 'mozRequest', 'mozCancel', 'AnimationFrame');
    patchTimer(global, 'webkitRequest', 'webkitCancel', 'AnimationFrame');
  });

  Zone.__load_patch('blocking', function (global, Zone) {
    var blockingMethods = ['alert', 'prompt', 'confirm'];

    for (var i = 0; i < blockingMethods.length; i++) {
      var name_2 = blockingMethods[i];
      patchMethod(global, name_2, function (delegate, symbol, name) {
        return function (s, args) {
          return Zone.current.run(delegate, global, args, name);
        };
      });
    }
  });

  Zone.__load_patch('EventTarget', function (global, Zone, api) {
    patchEvent(global, api);
    eventTargetPatch(global, api); // patch XMLHttpRequestEventTarget's addEventListener/removeEventListener

    var XMLHttpRequestEventTarget = global['XMLHttpRequestEventTarget'];

    if (XMLHttpRequestEventTarget && XMLHttpRequestEventTarget.prototype) {
      api.patchEventTarget(global, [XMLHttpRequestEventTarget.prototype]);
    }

    patchClass('MutationObserver');
    patchClass('WebKitMutationObserver');
    patchClass('IntersectionObserver');
    patchClass('FileReader');
  });

  Zone.__load_patch('on_property', function (global, Zone, api) {
    propertyDescriptorPatch(api, global);
  });

  Zone.__load_patch('customElements', function (global, Zone, api) {
    patchCustomElements(global, api);
  });

  Zone.__load_patch('XHR', function (global, Zone) {
    // Treat XMLHttpRequest as a macrotask.
    patchXHR(global);
    var XHR_TASK = zoneSymbol('xhrTask');
    var XHR_SYNC = zoneSymbol('xhrSync');
    var XHR_LISTENER = zoneSymbol('xhrListener');
    var XHR_SCHEDULED = zoneSymbol('xhrScheduled');
    var XHR_URL = zoneSymbol('xhrURL');
    var XHR_ERROR_BEFORE_SCHEDULED = zoneSymbol('xhrErrorBeforeScheduled');

    function patchXHR(window) {
      var XMLHttpRequest = window['XMLHttpRequest'];

      if (!XMLHttpRequest) {
        // XMLHttpRequest is not available in service worker
        return;
      }

      var XMLHttpRequestPrototype = XMLHttpRequest.prototype;

      function findPendingTask(target) {
        return target[XHR_TASK];
      }

      var oriAddListener = XMLHttpRequestPrototype[ZONE_SYMBOL_ADD_EVENT_LISTENER];
      var oriRemoveListener = XMLHttpRequestPrototype[ZONE_SYMBOL_REMOVE_EVENT_LISTENER];

      if (!oriAddListener) {
        var XMLHttpRequestEventTarget_1 = window['XMLHttpRequestEventTarget'];

        if (XMLHttpRequestEventTarget_1) {
          var XMLHttpRequestEventTargetPrototype = XMLHttpRequestEventTarget_1.prototype;
          oriAddListener = XMLHttpRequestEventTargetPrototype[ZONE_SYMBOL_ADD_EVENT_LISTENER];
          oriRemoveListener = XMLHttpRequestEventTargetPrototype[ZONE_SYMBOL_REMOVE_EVENT_LISTENER];
        }
      }

      var READY_STATE_CHANGE = 'readystatechange';
      var SCHEDULED = 'scheduled';

      function scheduleTask(task) {
        var data = task.data;
        var target = data.target;
        target[XHR_SCHEDULED] = false;
        target[XHR_ERROR_BEFORE_SCHEDULED] = false; // remove existing event listener

        var listener = target[XHR_LISTENER];

        if (!oriAddListener) {
          oriAddListener = target[ZONE_SYMBOL_ADD_EVENT_LISTENER];
          oriRemoveListener = target[ZONE_SYMBOL_REMOVE_EVENT_LISTENER];
        }

        if (listener) {
          oriRemoveListener.call(target, READY_STATE_CHANGE, listener);
        }

        var newListener = target[XHR_LISTENER] = function () {
          if (target.readyState === target.DONE) {
            // sometimes on some browsers XMLHttpRequest will fire onreadystatechange with
            // readyState=4 multiple times, so we need to check task state here
            if (!data.aborted && target[XHR_SCHEDULED] && task.state === SCHEDULED) {
              // check whether the xhr has registered onload listener
              // if that is the case, the task should invoke after all
              // onload listeners finish.
              var loadTasks = target[Zone.__symbol__('loadfalse')];

              if (loadTasks && loadTasks.length > 0) {
                var oriInvoke_1 = task.invoke;

                task.invoke = function () {
                  // need to load the tasks again, because in other
                  // load listener, they may remove themselves
                  var loadTasks = target[Zone.__symbol__('loadfalse')];

                  for (var i = 0; i < loadTasks.length; i++) {
                    if (loadTasks[i] === task) {
                      loadTasks.splice(i, 1);
                    }
                  }

                  if (!data.aborted && task.state === SCHEDULED) {
                    oriInvoke_1.call(task);
                  }
                };

                loadTasks.push(task);
              } else {
                task.invoke();
              }
            } else if (!data.aborted && target[XHR_SCHEDULED] === false) {
              // error occurs when xhr.send()
              target[XHR_ERROR_BEFORE_SCHEDULED] = true;
            }
          }
        };

        oriAddListener.call(target, READY_STATE_CHANGE, newListener);
        var storedTask = target[XHR_TASK];

        if (!storedTask) {
          target[XHR_TASK] = task;
        }

        sendNative.apply(target, data.args);
        target[XHR_SCHEDULED] = true;
        return task;
      }

      function placeholderCallback() {}

      function clearTask(task) {
        var data = task.data; // Note - ideally, we would call data.target.removeEventListener here, but it's too late
        // to prevent it from firing. So instead, we store info for the event listener.

        data.aborted = true;
        return abortNative.apply(data.target, data.args);
      }

      var openNative = patchMethod(XMLHttpRequestPrototype, 'open', function () {
        return function (self, args) {
          self[XHR_SYNC] = args[2] == false;
          self[XHR_URL] = args[1];
          return openNative.apply(self, args);
        };
      });
      var XMLHTTPREQUEST_SOURCE = 'XMLHttpRequest.send';
      var fetchTaskAborting = zoneSymbol('fetchTaskAborting');
      var fetchTaskScheduling = zoneSymbol('fetchTaskScheduling');
      var sendNative = patchMethod(XMLHttpRequestPrototype, 'send', function () {
        return function (self, args) {
          if (Zone.current[fetchTaskScheduling] === true) {
            // a fetch is scheduling, so we are using xhr to polyfill fetch
            // and because we already schedule macroTask for fetch, we should
            // not schedule a macroTask for xhr again
            return sendNative.apply(self, args);
          }

          if (self[XHR_SYNC]) {
            // if the XHR is sync there is no task to schedule, just execute the code.
            return sendNative.apply(self, args);
          } else {
            var options = {
              target: self,
              url: self[XHR_URL],
              isPeriodic: false,
              args: args,
              aborted: false
            };
            var task = scheduleMacroTaskWithCurrentZone(XMLHTTPREQUEST_SOURCE, placeholderCallback, options, scheduleTask, clearTask);

            if (self && self[XHR_ERROR_BEFORE_SCHEDULED] === true && !options.aborted && task.state === SCHEDULED) {
              // xhr request throw error when send
              // we should invoke task instead of leaving a scheduled
              // pending macroTask
              task.invoke();
            }
          }
        };
      });
      var abortNative = patchMethod(XMLHttpRequestPrototype, 'abort', function () {
        return function (self, args) {
          var task = findPendingTask(self);

          if (task && typeof task.type == 'string') {
            // If the XHR has already completed, do nothing.
            // If the XHR has already been aborted, do nothing.
            // Fix #569, call abort multiple times before done will cause
            // macroTask task count be negative number
            if (task.cancelFn == null || task.data && task.data.aborted) {
              return;
            }

            task.zone.cancelTask(task);
          } else if (Zone.current[fetchTaskAborting] === true) {
            // the abort is called from fetch polyfill, we need to call native abort of XHR.
            return abortNative.apply(self, args);
          } // Otherwise, we are trying to abort an XHR which has not yet been sent, so there is no
          // task
          // to cancel. Do nothing.

        };
      });
    }
  });

  Zone.__load_patch('geolocation', function (global) {
    /// GEO_LOCATION
    if (global['navigator'] && global['navigator'].geolocation) {
      patchPrototype(global['navigator'].geolocation, ['getCurrentPosition', 'watchPosition']);
    }
  });

  Zone.__load_patch('PromiseRejectionEvent', function (global, Zone) {
    // handle unhandled promise rejection
    function findPromiseRejectionHandler(evtName) {
      return function (e) {
        var eventTasks = findEventTasks(global, evtName);
        eventTasks.forEach(function (eventTask) {
          // windows has added unhandledrejection event listener
          // trigger the event listener
          var PromiseRejectionEvent = global['PromiseRejectionEvent'];

          if (PromiseRejectionEvent) {
            var evt = new PromiseRejectionEvent(evtName, {
              promise: e.promise,
              reason: e.rejection
            });
            eventTask.invoke(evt);
          }
        });
      };
    }

    if (global['PromiseRejectionEvent']) {
      Zone[zoneSymbol('unhandledPromiseRejectionHandler')] = findPromiseRejectionHandler('unhandledrejection');
      Zone[zoneSymbol('rejectionHandledHandler')] = findPromiseRejectionHandler('rejectionhandled');
    }
  });
});

/***/ }),

/***/ "./src/polyfills.ts":
/*!**************************!*\
  !*** ./src/polyfills.ts ***!
  \**************************/
/*! no exports provided */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony import */ var _angular_localize_init__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! @angular/localize/init */ "./node_modules/@angular-devkit/build-angular/src/utils/empty.js");
/* harmony import */ var _angular_localize_init__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(_angular_localize_init__WEBPACK_IMPORTED_MODULE_0__);
/* harmony import */ var classlist_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! classlist.js */ "./node_modules/classlist.js/classList.js");
/* harmony import */ var classlist_js__WEBPACK_IMPORTED_MODULE_1___default = /*#__PURE__*/__webpack_require__.n(classlist_js__WEBPACK_IMPORTED_MODULE_1__);
/* harmony import */ var zone_js_dist_zone__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! zone.js/dist/zone */ "./node_modules/zone.js/dist/zone.js");
/* harmony import */ var zone_js_dist_zone__WEBPACK_IMPORTED_MODULE_2___default = /*#__PURE__*/__webpack_require__.n(zone_js_dist_zone__WEBPACK_IMPORTED_MODULE_2__);
/***************************************************************************************************
 * Load `$localize` onto the global scope - used if i18n tags appear in Angular templates.
 */

/**
 * This file includes polyfills needed by Angular and is loaded before the app.
 * You can add your own extra polyfills to this file.
 *
 * This file is divided into 2 sections:
 *   1. Browser polyfills. These are applied before loading ZoneJS and are sorted by browsers.
 *   2. Application imports. Files imported after ZoneJS that should be loaded before your main
 *      file.
 *
 * The current setup is for so-called "evergreen" browsers; the last versions of browsers that
 * automatically update themselves. This includes Safari >= 10, Chrome >= 55 (including Opera),
 * Edge >= 13 on the desktop, and iOS 10 and Chrome on mobile.
 *
 * Learn more in https://angular.io/guide/browser-support
 */
/***************************************************************************************************
 * BROWSER POLYFILLS
 */
/** IE10 and IE11 requires the following for NgClass support on SVG elements */
 // Run `npm install --save classlist.js`.
/**
 * Web Animations `@angular/platform-browser/animations`
 * Only required if AnimationBuilder is used within the application and using IE/Edge or Safari.
 * Standard animation support in Angular DOES NOT require any polyfills (as of Angular 6.0).
 */
// import 'web-animations-js';  // Run `npm install --save web-animations-js`.
/**
 * By default, zone.js will patch all possible macroTask and DomEvents
 * user can disable parts of macroTask/DomEvents patch by setting following flags
 * because those flags need to be set before `zone.js` being loaded, and webpack
 * will put import in the top of bundle, so user need to create a separate file
 * in this directory (for example: zone-flags.ts), and put the following flags
 * into that file, and then add the following code before importing zone.js.
 * import './zone-flags';
 *
 * The flags allowed in zone-flags.ts are listed here.
 *
 * The following flags will work for all browsers.
 *
 * (window as any).__Zone_disable_requestAnimationFrame = true; // disable patch requestAnimationFrame
 * (window as any).__Zone_disable_on_property = true; // disable patch onProperty such as onclick
 * (window as any).__zone_symbol__UNPATCHED_EVENTS = ['scroll', 'mousemove']; // disable patch specified eventNames
 *
 *  in IE/Edge developer tools, the addEventListener will also be wrapped by zone.js
 *  with the following flag, it will bypass `zone.js` patch for IE/Edge
 *
 *  (window as any).__Zone_enable_cross_context_check = true;
 *
 */
/***************************************************************************************************
 * Zone JS is required by default for Angular itself.
 */
 // Included with Angular CLI.
/***************************************************************************************************
 * APPLICATION IMPORTS
 */


/***/ }),

/***/ 2:
/*!********************************!*\
  !*** multi ./src/polyfills.ts ***!
  \********************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

module.exports = __webpack_require__(/*! E:\programs\by-project\DSystem\angularDsys\src\polyfills.ts */"./src/polyfills.ts");


/***/ })

},[[2,"runtime"]]]);
//# sourceMappingURL=polyfills.js.map