Issue 573 - Resolve relative URLs in the beforeload handler on Safari

safari/ext/content.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 40 matching lines @@
       document.removeEventListener("visibilitychange", onVisibilitychange);
     };
     document.addEventListener("visibilitychange", onVisibilitychange);
   }
 
 
   /* Web requests */
 
   document.addEventListener("beforeload", function(event)
   {
+    var url = relativeToAbsoluteUrl(event.url);
+
     // we don't block non-HTTP requests anyway, so we can bail out
     // without asking the background page. This is even necessary
     // because passing large data (like a photo encoded as data: URL)
     // to the background page, freezes Safari.
-    if (!/^https?:/.test(event.url))
+    if (!/^https?:/.test(url))
       return;
 
     var type;
     switch(event.target.localName)
     {
       case "frame":
       case "iframe":
         type = "sub_frame";
         break;
       case "img":
@@ skipping 12 matching lines @@
           type = "stylesheet";
           break;
         }
       default:
         type = "other";
     }
 
     if (!safari.self.tab.canLoad(
       event, {
         category: "webRequest",
-        url: event.url,
+        url: url,
         type: type,
         pageId: documentInfo.pageId,
         frameId: documentInfo.frameId
       }
     ))
     {
       event.preventDefault();
 
       // Safari doesn't dispatch an "error" event when preventing an element
       // from loading by cancelling the "beforeload" event. So we have to
@@ skipping 299 matching lines @@
             messageProxy.handleResponse(event.message);
             break;
           case "proxyCallback":
             backgroundPageProxy.handleCallback(event.message);
             break;
         }
       }
     }
   });
 })();