Issue 1127 - Fix social buttons in FRP

html/static/js/firstRun.js

 /*
  * This file is part of Adblock Plus <http://adblockplus.org/>,
  * Copyright (C) 2006-2014 Eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 14 matching lines @@
   var iframe = document.getElementById("share-popup");
   var glassPane = document.getElementById("glass-pane");
   var popupMessageReceived = false;
 
   var popupMessageListener = function(event)
   {
     var originFilter = Filter.fromText("||adblockplus.org^");
     if (!originFilter.matches(event.origin, "OTHER", null, null))
       return;
 
-    var data = JSON.parse(event.data);
+    var data = event.data;
     iframe.width = data.width;
     iframe.height = data.height;
     popupMessageReceived = true;
     window.removeEventListener("message", popupMessageListener);
   };
   window.addEventListener("message", popupMessageListener);
 
   var listenCount = 0;
   var popupLoadListener = function()
   {
@@ skipping 84 matching lines @@
   document.documentElement.className = classList.join(" ");
 
   initTranslations();
   initSocialLinks(variant);
 
   var donateLink = document.getElementById("share-donate");
   donateLink.href = getDocLink("donate") + "&variant=" + variant;
 }
 
 window.addEventListener("load", init);