Only load 3rd party JavaScript when config.enableThirdPartyRequests is true.

config.js

     /*noticeMessage: 'Service update is scheduled for 16th March 2015. ' +
     'During that time service will not be available. ' +
     'Apologise for inconvenience.'*/
+    enableThirdPartyRequests: true
 };

index.html

     <meta itemprop="image" content="/images/jitsilogo.png?v=1"/>
       <link rel="stylesheet" href="css/all.css"/>
     <script>console.log("(TIME) index.html loaded:\t", window.performance.now());</script>
-    <script src="https://api.callstats.io/static/callstats.min.js"></script>
     <script src="config.js?v=15"></script><!-- adapt to your needs, i.e. set hosts and bosh path -->
     <script src="interface_config.js?v=6"></script>
     <script src="libs/app.bundle.min.js?v=139"></script>
-    <script src="analytics.js?v=1"></script><!-- google analytics plugin -->
     <!--
         Link used for inline installation of chrome desktop streaming extension,
         is updated automatically from the code with the value defined in config.js -->
             <a id="feedbackButton" data-container="body" data-toggle="popover" data-placement="right" data-i18n="[data-content]feedback"><i class="fa fa-heart"></i></a>
         </div>
     </div>
+    <script type="text/javascript">
+      if (config.enableThirdPartyRequests === true)
+      { 
+        [
+          'https://api.callstats.io/static/callstats.min.js',
+          'analytics.js?v=1'
+        ].forEach(function(extSrc) 
+        {
+          var extScript = document.createElement('script');
+          extScript.src = extSrc;
+          extScript.async = false;
+          document.head.appendChild(extScript);
+        });
+      }
+    </script>
   </body>
 </html>