diff --git a/www/index.html b/www/index.html
index de43d2d..4e6a4d7 100644
--- a/www/index.html
+++ b/www/index.html
@@ -20,27 +20,40 @@
     under the License.
 -->
 <html>
-    <head>
-        <meta charset="utf-8" />
-        <meta name="format-detection" content="telephone=no" />
-        <meta name="msapplication-tap-highlight" content="no" />
-        <!-- WARNING: for iOS 7, remove the width=device-width and height=device-height attributes. See https://issues.apache.org/jira/browse/CB-4323 -->
-        <meta name="viewport" content="user-scalable=no, initial-scale=1, maximum-scale=1, minimum-scale=1, width=device-width, height=device-height, target-densitydpi=device-dpi" />
-        <link rel="stylesheet" type="text/css" href="css/index.css" />
-        <title>Hello World</title>
-    </head>
-    <body>
-        <div class="app">
-            <h1>PhoneGap</h1>
-            <div id="deviceready" class="blink">
-                <p class="event listening">Connecting to Device</p>
-                <p class="event received">Device is Ready</p>
-            </div>
+
+<head>
+    <meta charset="utf-8" />
+    <meta name="format-detection" content="telephone=no" />
+    <meta name="msapplication-tap-highlight" content="no" />
+    <!-- WARNING: for iOS 7, remove the width=device-width and height=device-height attributes. See https://issues.apache.org/jira/browse/CB-4323 -->
+    <meta name="viewport" content="user-scalable=no, initial-scale=1, maximum-scale=1, minimum-scale=1, width=device-width, height=device-height, target-densitydpi=device-dpi"
+    />
+    <!-- Good default declaration:
+    * gap: is required only on iOS (when using UIWebView) and is needed for JS->native communication
+    * https://ssl.gstatic.com is required only on Android and is needed for TalkBack to function properly
+    * Disables use of eval() and inline scripts in order to mitigate risk of XSS vulnerabilities. To change this:
+        * Enable inline JS: add 'unsafe-inline' to default-src
+        * Enable eval(): add 'unsafe-eval' to default-src
+    -->
+    <meta http-equiv="Content-Security-Policy" content="default-src 'self' data: gap: https://ssl.gstatic.com; style-src 'self' 'unsafe-inline'; media-src *">
+
+    <link rel="stylesheet" type="text/css" href="css/index.css" />
+    <title>Hello World</title>
+</head>
+
+<body>
+    <div class="app">
+        <h1>PhoneGap</h1>
+        <div id="deviceready" class="blink">
+            <p class="event listening">Connecting to Device</p>
+            <p class="event received">Device is Ready</p>
         </div>
-        <script type="text/javascript" src="cordova.js"></script>
-        <script type="text/javascript" src="js/index.js"></script>
-        <script type="text/javascript">
-            app.initialize();
-        </script>
-    </body>
-</html>
+    </div>
+    <script type="text/javascript" src="cordova.js"></script>
+    <script type="text/javascript" src="js/index.js"></script>
+    <script type="text/javascript">
+        app.initialize();
+    </script>
+</body>
+
+</html>
\ No newline at end of file
