Issue 1727 - Prevent circumvention via WebSocket

safari/include.youtube.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2016 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 74 matching lines @@
     if (flashvarsChanged)
       player.parentNode.replaceChild(newPlayer, player);
   }
 
   document.addEventListener("beforeload", function(event)
   {
     if ((event.target.localName == "object" || event.target.localName == "embed") && /:\/\/[^\/]*\.ytimg\.com\//.test(event.url))
       patchPlayer(event.target);
   }, true);
 
-  runInPage(function(badArgumentsRegex)
+  runInPage(function(badArgumentsRegexSource)
   {
+    var badArgumentsRegex = new RegExp(badArgumentsRegexSource);
+
     // If history.pushState is available, YouTube uses the history API
     // when navigation from one video to another, and tells the flash
     // player with JavaScript which video and which ads to show next,
     // bypassing our flashvars rewrite code. So we disable
     // history.pushState before YouTube's JavaScript runs.
     History.prototype.pushState = undefined;
 
     // The HTML5 player is configured via ytplayer.config.args. We have
     // to make sure that ad-related arguments are ignored as they are set.
     var ytplayer = undefined;
@@ skipping 55 matching lines @@
               });
 
               config.args = rawConfig.args;
             }
           }
         });
 
         ytplayer.config = rawYtplayer.config;
       }
     });
-  }, badArgumentsRegex);
+  }, badArgumentsRegex.source);
 })();