Issue 154 - Added devtools panel showing blocked and blockable items

webrequest.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 54 matching lines @@
 function onBeforeRequest(url, type, page, frame)
 {
   if (checkWhitelisted(page, frame))
     return true;
 
   var urlString = stringifyURL(url);
   var docDomain = extractHostFromFrame(frame);
   var thirdParty = isThirdParty(url, docDomain);
   var key = getKey(page, frame);
 
-  var specificOnly = checkWhitelisted(
+  var specificOnly = !!checkWhitelisted(
     page, frame, RegExpFilter.typeMap.GENERICBLOCK
   );
 
   var filter = defaultMatcher.matchesAny(
     urlString, RegExpFilter.typeMap[type],
     docDomain, thirdParty, key, specificOnly
   );
 
   setTimeout(onBeforeRequestAsync, 0, page, urlString,
                                       type, docDomain,
@@ skipping 25 matching lines @@
 
   chrome.webRequest.onHeadersReceived.addListener(
     onHeadersReceived,
     {
       urls: ["http://*/*", "https://*/*"],
       types: ["main_frame", "sub_frame"]
     },
     ["responseHeaders"]
   );
 }