diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 2654d3854..6628103ad 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -3,7 +3,7 @@ on: push
 
 jobs:
   test:
-    runs-on: servebox/phantomjs
+    runs-on: ubuntu-latest
 
     steps:
       - name: Checkout 🛎️
diff --git a/package-lock.json b/package-lock.json
index 438f4d444..2093cf2ba 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3876,12 +3876,6 @@
         "event-emitter": "~0.3.5"
       }
     },
-    "es6-promise": {
-      "version": "3.3.1",
-      "resolved": "https://registry.npmjs.org/es6-promise/-/es6-promise-3.3.1.tgz",
-      "integrity": "sha1-oIzd6EzNvzTQJ6FFG8kdS80ophM=",
-      "dev": true
-    },
     "es6-set": {
       "version": "0.1.5",
       "resolved": "https://registry.npmjs.org/es6-set/-/es6-set-0.1.5.tgz",
@@ -8783,12 +8777,6 @@
         "expect.js": "^0.3.1"
       }
     },
-    "karma-firefox-launcher": {
-      "version": "0.1.7",
-      "resolved": "https://registry.npmjs.org/karma-firefox-launcher/-/karma-firefox-launcher-0.1.7.tgz",
-      "integrity": "sha1-wF3YZTNpHmLzGVJZUJjovTV9OfM=",
-      "dev": true
-    },
     "karma-mocha": {
       "version": "0.2.2",
       "resolved": "https://registry.npmjs.org/karma-mocha/-/karma-mocha-0.2.2.tgz",
@@ -8858,22 +8846,6 @@
         }
       }
     },
-    "karma-opera-launcher": {
-      "version": "0.3.0",
-      "resolved": "https://registry.npmjs.org/karma-opera-launcher/-/karma-opera-launcher-0.3.0.tgz",
-      "integrity": "sha1-qNIFRtqIRJORkXOFx2eU3pz7B1Y=",
-      "dev": true
-    },
-    "karma-phantomjs-launcher": {
-      "version": "1.0.4",
-      "resolved": "https://registry.npmjs.org/karma-phantomjs-launcher/-/karma-phantomjs-launcher-1.0.4.tgz",
-      "integrity": "sha1-0jyjSAG9qYY60xjju0vUBisTrNI=",
-      "dev": true,
-      "requires": {
-        "lodash": "^4.0.1",
-        "phantomjs-prebuilt": "^2.1.7"
-      }
-    },
     "karma-sinon": {
       "version": "1.0.5",
       "resolved": "https://registry.npmjs.org/karma-sinon/-/karma-sinon-1.0.5.tgz",
@@ -11382,731 +11354,6 @@
       "dev": true,
       "optional": true
     },
-    "phantomjs-prebuilt": {
-      "version": "2.1.11",
-      "resolved": "https://registry.npmjs.org/phantomjs-prebuilt/-/phantomjs-prebuilt-2.1.11.tgz",
-      "integrity": "sha1-wsmAydy+NfwW+P1UO2DeJXuBPbA=",
-      "dev": true,
-      "requires": {
-        "es6-promise": "^3.2.1",
-        "extract-zip": "~1.5.0",
-        "fs-extra": "~0.30.0",
-        "hasha": "^2.2.0",
-        "kew": "~0.7.0",
-        "progress": "~1.1.8",
-        "request": "~2.74.0",
-        "request-progress": "~2.0.1",
-        "which": "~1.2.10"
-      },
-      "dependencies": {
-        "ansi-regex": {
-          "version": "2.0.0",
-          "bundled": true,
-          "dev": true
-        },
-        "ansi-styles": {
-          "version": "2.2.1",
-          "bundled": true,
-          "dev": true
-        },
-        "asn1": {
-          "version": "0.2.3",
-          "bundled": true,
-          "dev": true
-        },
-        "assert-plus": {
-          "version": "0.2.0",
-          "bundled": true,
-          "dev": true
-        },
-        "async": {
-          "version": "1.5.2",
-          "bundled": true,
-          "dev": true
-        },
-        "aws-sign2": {
-          "version": "0.6.0",
-          "bundled": true,
-          "dev": true
-        },
-        "aws4": {
-          "version": "1.4.1",
-          "bundled": true,
-          "dev": true
-        },
-        "balanced-match": {
-          "version": "0.4.2",
-          "bundled": true,
-          "dev": true
-        },
-        "bl": {
-          "version": "1.1.2",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "readable-stream": "~2.0.5"
-          }
-        },
-        "boom": {
-          "version": "2.10.1",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "hoek": "2.x.x"
-          }
-        },
-        "brace-expansion": {
-          "version": "1.1.6",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "balanced-match": "^0.4.1",
-            "concat-map": "0.0.1"
-          }
-        },
-        "caseless": {
-          "version": "0.11.0",
-          "bundled": true,
-          "dev": true
-        },
-        "chalk": {
-          "version": "1.1.3",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "ansi-styles": "^2.2.1",
-            "escape-string-regexp": "^1.0.2",
-            "has-ansi": "^2.0.0",
-            "strip-ansi": "^3.0.0",
-            "supports-color": "^2.0.0"
-          }
-        },
-        "combined-stream": {
-          "version": "1.0.5",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "delayed-stream": "~1.0.0"
-          }
-        },
-        "commander": {
-          "version": "2.9.0",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "graceful-readlink": ">= 1.0.0"
-          }
-        },
-        "concat-map": {
-          "version": "0.0.1",
-          "bundled": true,
-          "dev": true
-        },
-        "concat-stream": {
-          "version": "1.5.0",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "inherits": "~2.0.1",
-            "readable-stream": "~2.0.0",
-            "typedarray": "~0.0.5"
-          }
-        },
-        "core-util-is": {
-          "version": "1.0.2",
-          "bundled": true,
-          "dev": true
-        },
-        "cryptiles": {
-          "version": "2.0.5",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "boom": "2.x.x"
-          }
-        },
-        "dashdash": {
-          "version": "1.14.0",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "assert-plus": "^1.0.0"
-          },
-          "dependencies": {
-            "assert-plus": {
-              "version": "1.0.0",
-              "bundled": true,
-              "dev": true
-            }
-          }
-        },
-        "debug": {
-          "version": "0.7.4",
-          "bundled": true,
-          "dev": true
-        },
-        "delayed-stream": {
-          "version": "1.0.0",
-          "bundled": true,
-          "dev": true
-        },
-        "ecc-jsbn": {
-          "version": "0.1.1",
-          "bundled": true,
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "jsbn": "~0.1.0"
-          }
-        },
-        "escape-string-regexp": {
-          "version": "1.0.5",
-          "bundled": true,
-          "dev": true
-        },
-        "extend": {
-          "version": "3.0.0",
-          "bundled": true,
-          "dev": true
-        },
-        "extract-zip": {
-          "version": "1.5.0",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "concat-stream": "1.5.0",
-            "debug": "0.7.4",
-            "mkdirp": "0.5.0",
-            "yauzl": "2.4.1"
-          }
-        },
-        "extsprintf": {
-          "version": "1.0.2",
-          "bundled": true,
-          "dev": true
-        },
-        "fd-slicer": {
-          "version": "1.0.1",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "pend": "~1.2.0"
-          }
-        },
-        "forever-agent": {
-          "version": "0.6.1",
-          "bundled": true,
-          "dev": true
-        },
-        "form-data": {
-          "version": "1.0.0-rc4",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "async": "^1.5.2",
-            "combined-stream": "^1.0.5",
-            "mime-types": "^2.1.10"
-          }
-        },
-        "fs-extra": {
-          "version": "0.30.0",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "graceful-fs": "^4.1.2",
-            "jsonfile": "^2.1.0",
-            "klaw": "^1.0.0",
-            "path-is-absolute": "^1.0.0",
-            "rimraf": "^2.2.8"
-          }
-        },
-        "fs.realpath": {
-          "version": "1.0.0",
-          "bundled": true,
-          "dev": true
-        },
-        "generate-function": {
-          "version": "2.0.0",
-          "bundled": true,
-          "dev": true
-        },
-        "generate-object-property": {
-          "version": "1.2.0",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "is-property": "^1.0.0"
-          }
-        },
-        "getpass": {
-          "version": "0.1.6",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "assert-plus": "^1.0.0"
-          },
-          "dependencies": {
-            "assert-plus": {
-              "version": "1.0.0",
-              "bundled": true,
-              "dev": true
-            }
-          }
-        },
-        "glob": {
-          "version": "7.0.5",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "fs.realpath": "^1.0.0",
-            "inflight": "^1.0.4",
-            "inherits": "2",
-            "minimatch": "^3.0.2",
-            "once": "^1.3.0",
-            "path-is-absolute": "^1.0.0"
-          }
-        },
-        "graceful-fs": {
-          "version": "4.1.5",
-          "bundled": true,
-          "dev": true
-        },
-        "graceful-readlink": {
-          "version": "1.0.1",
-          "bundled": true,
-          "dev": true
-        },
-        "har-validator": {
-          "version": "2.0.6",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "chalk": "^1.1.1",
-            "commander": "^2.9.0",
-            "is-my-json-valid": "^2.12.4",
-            "pinkie-promise": "^2.0.0"
-          }
-        },
-        "has-ansi": {
-          "version": "2.0.0",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "ansi-regex": "^2.0.0"
-          }
-        },
-        "hasha": {
-          "version": "2.2.0",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "is-stream": "^1.0.1",
-            "pinkie-promise": "^2.0.0"
-          }
-        },
-        "hawk": {
-          "version": "3.1.3",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "boom": "2.x.x",
-            "cryptiles": "2.x.x",
-            "hoek": "2.x.x",
-            "sntp": "1.x.x"
-          }
-        },
-        "hoek": {
-          "version": "2.16.3",
-          "bundled": true,
-          "dev": true
-        },
-        "http-signature": {
-          "version": "1.1.1",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "assert-plus": "^0.2.0",
-            "jsprim": "^1.2.2",
-            "sshpk": "^1.7.0"
-          }
-        },
-        "inflight": {
-          "version": "1.0.5",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "once": "^1.3.0",
-            "wrappy": "1"
-          }
-        },
-        "inherits": {
-          "version": "2.0.1",
-          "bundled": true,
-          "dev": true
-        },
-        "is-my-json-valid": {
-          "version": "2.13.1",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "generate-function": "^2.0.0",
-            "generate-object-property": "^1.1.0",
-            "jsonpointer": "2.0.0",
-            "xtend": "^4.0.0"
-          }
-        },
-        "is-property": {
-          "version": "1.0.2",
-          "bundled": true,
-          "dev": true
-        },
-        "is-stream": {
-          "version": "1.1.0",
-          "bundled": true,
-          "dev": true
-        },
-        "is-typedarray": {
-          "version": "1.0.0",
-          "bundled": true,
-          "dev": true
-        },
-        "isarray": {
-          "version": "1.0.0",
-          "bundled": true,
-          "dev": true
-        },
-        "isexe": {
-          "version": "1.1.2",
-          "bundled": true,
-          "dev": true
-        },
-        "isstream": {
-          "version": "0.1.2",
-          "bundled": true,
-          "dev": true
-        },
-        "jodid25519": {
-          "version": "1.0.2",
-          "bundled": true,
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "jsbn": "~0.1.0"
-          }
-        },
-        "jsbn": {
-          "version": "0.1.0",
-          "bundled": true,
-          "dev": true,
-          "optional": true
-        },
-        "json-schema": {
-          "version": "0.2.2",
-          "bundled": true,
-          "dev": true
-        },
-        "json-stringify-safe": {
-          "version": "5.0.1",
-          "bundled": true,
-          "dev": true
-        },
-        "jsonfile": {
-          "version": "2.3.1",
-          "bundled": true,
-          "dev": true
-        },
-        "jsonpointer": {
-          "version": "2.0.0",
-          "bundled": true,
-          "dev": true
-        },
-        "jsprim": {
-          "version": "1.3.0",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "extsprintf": "1.0.2",
-            "json-schema": "0.2.2",
-            "verror": "1.3.6"
-          }
-        },
-        "kew": {
-          "version": "0.7.0",
-          "bundled": true,
-          "dev": true
-        },
-        "klaw": {
-          "version": "1.3.0",
-          "bundled": true,
-          "dev": true
-        },
-        "mime-db": {
-          "version": "1.23.0",
-          "bundled": true,
-          "dev": true
-        },
-        "mime-types": {
-          "version": "2.1.11",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "mime-db": "~1.23.0"
-          }
-        },
-        "minimatch": {
-          "version": "3.0.2",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "brace-expansion": "^1.0.0"
-          }
-        },
-        "minimist": {
-          "version": "0.0.8",
-          "bundled": true,
-          "dev": true
-        },
-        "mkdirp": {
-          "version": "0.5.0",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "minimist": "0.0.8"
-          }
-        },
-        "node-uuid": {
-          "version": "1.4.7",
-          "bundled": true,
-          "dev": true
-        },
-        "oauth-sign": {
-          "version": "0.8.2",
-          "bundled": true,
-          "dev": true
-        },
-        "once": {
-          "version": "1.3.3",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "wrappy": "1"
-          }
-        },
-        "path-is-absolute": {
-          "version": "1.0.0",
-          "bundled": true,
-          "dev": true
-        },
-        "pend": {
-          "version": "1.2.0",
-          "bundled": true,
-          "dev": true
-        },
-        "pinkie": {
-          "version": "2.0.4",
-          "bundled": true,
-          "dev": true
-        },
-        "pinkie-promise": {
-          "version": "2.0.1",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "pinkie": "^2.0.0"
-          }
-        },
-        "process-nextick-args": {
-          "version": "1.0.7",
-          "bundled": true,
-          "dev": true
-        },
-        "progress": {
-          "version": "1.1.8",
-          "bundled": true,
-          "dev": true
-        },
-        "qs": {
-          "version": "6.2.1",
-          "bundled": true,
-          "dev": true
-        },
-        "readable-stream": {
-          "version": "2.0.6",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "core-util-is": "~1.0.0",
-            "inherits": "~2.0.1",
-            "isarray": "~1.0.0",
-            "process-nextick-args": "~1.0.6",
-            "string_decoder": "~0.10.x",
-            "util-deprecate": "~1.0.1"
-          }
-        },
-        "request": {
-          "version": "2.74.0",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "aws-sign2": "~0.6.0",
-            "aws4": "^1.2.1",
-            "bl": "~1.1.2",
-            "caseless": "~0.11.0",
-            "combined-stream": "~1.0.5",
-            "extend": "~3.0.0",
-            "forever-agent": "~0.6.1",
-            "form-data": "~1.0.0-rc4",
-            "har-validator": "~2.0.6",
-            "hawk": "~3.1.3",
-            "http-signature": "~1.1.0",
-            "is-typedarray": "~1.0.0",
-            "isstream": "~0.1.2",
-            "json-stringify-safe": "~5.0.1",
-            "mime-types": "~2.1.7",
-            "node-uuid": "~1.4.7",
-            "oauth-sign": "~0.8.1",
-            "qs": "~6.2.0",
-            "stringstream": "~0.0.4",
-            "tough-cookie": "~2.3.0",
-            "tunnel-agent": "~0.4.1"
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-        },
-        "request-progress": {
-          "version": "2.0.1",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "throttleit": "^1.0.0"
-          }
-        },
-        "rimraf": {
-          "version": "2.5.4",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "glob": "^7.0.5"
-          }
-        },
-        "sntp": {
-          "version": "1.0.9",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "hoek": "2.x.x"
-          }
-        },
-        "sshpk": {
-          "version": "1.9.2",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "asn1": "~0.2.3",
-            "assert-plus": "^1.0.0",
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-            "ecc-jsbn": "~0.1.1",
-            "getpass": "^0.1.1",
-            "jodid25519": "^1.0.0",
-            "jsbn": "~0.1.0",
-            "tweetnacl": "~0.13.0"
-          },
-          "dependencies": {
-            "assert-plus": {
-              "version": "1.0.0",
-              "bundled": true,
-              "dev": true
-            }
-          }
-        },
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-          "version": "0.10.31",
-          "bundled": true,
-          "dev": true
-        },
-        "stringstream": {
-          "version": "0.0.5",
-          "bundled": true,
-          "dev": true
-        },
-        "strip-ansi": {
-          "version": "3.0.1",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "ansi-regex": "^2.0.0"
-          }
-        },
-        "supports-color": {
-          "version": "2.0.0",
-          "bundled": true,
-          "dev": true
-        },
-        "throttleit": {
-          "version": "1.0.0",
-          "bundled": true,
-          "dev": true
-        },
-        "tough-cookie": {
-          "version": "2.3.1",
-          "bundled": true,
-          "dev": true
-        },
-        "tunnel-agent": {
-          "version": "0.4.3",
-          "bundled": true,
-          "dev": true
-        },
-        "tweetnacl": {
-          "version": "0.13.3",
-          "bundled": true,
-          "dev": true,
-          "optional": true
-        },
-        "typedarray": {
-          "version": "0.0.6",
-          "bundled": true,
-          "dev": true
-        },
-        "util-deprecate": {
-          "version": "1.0.2",
-          "bundled": true,
-          "dev": true
-        },
-        "verror": {
-          "version": "1.3.6",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "extsprintf": "1.0.2"
-          }
-        },
-        "which": {
-          "version": "1.2.10",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "isexe": "^1.1.1"
-          }
-        },
-        "wrappy": {
-          "version": "1.0.2",
-          "bundled": true,
-          "dev": true
-        },
-        "xtend": {
-          "version": "4.0.1",
-          "bundled": true,
-          "dev": true
-        },
-        "yauzl": {
-          "version": "2.4.1",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "fd-slicer": "~1.0.1"
-          }
-        }
-      }
-    },
     "picomatch": {
       "version": "2.2.1",
       "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.2.1.tgz",
diff --git a/package.json b/package.json
index c60bf8e7b..d060de8fe 100644
--- a/package.json
+++ b/package.json
@@ -67,11 +67,8 @@
     "karma-chrome-launcher": "^0.2.0",
     "karma-coverage": "^0.5.5",
     "karma-expect": "^1.1.0",
-    "karma-firefox-launcher": "^0.1.0",
     "karma-mocha": "^0.2.0",
     "karma-mocha-reporter": "^2.0.0",
-    "karma-opera-launcher": "^0.3.0",
-    "karma-phantomjs-launcher": "^1.0.0",
     "karma-sinon": "^1.0.4",
     "less": "^2.6.1",
     "map-stream": "0.1.0",
@@ -82,7 +79,6 @@
     "mocha": "^2.4.5",
     "mock-geolocation": "^1.0.11",
     "optimist": "^0.6.1",
-    "phantomjs-prebuilt": "2.1.11",
     "pixelsmith": "^2.1.0",
     "plugin-error": "^1.0.1",
     "pretty-bytes": "^4.0.2",
diff --git a/test/karma.conf.js b/test/karma.conf.js
index 9e6fbf945..279efdfb1 100644
--- a/test/karma.conf.js
+++ b/test/karma.conf.js
@@ -52,7 +52,7 @@ module.exports = function(config) {
         // - PhantomJS
         // - IE (only Windows)
         // CLI --browsers Chrome,Firefox,Safari
-        browsers: ['PhantomJS'],
+        browsers: ['Chrome'],
 
         // If browser does not capture in given timeout [ms], kill it
         // CLI --capture-timeout 5000
@@ -71,10 +71,7 @@ module.exports = function(config) {
             'karma-mocha',
             'karma-expect',
             'karma-sinon',
-            'karma-phantomjs-launcher',
             'karma-chrome-launcher',
-            'karma-opera-launcher',
-            'karma-firefox-launcher',
             'karma-mocha-reporter',
             'karma-coverage'
         ]