Noissue - Check for devtools.panels API support

devtools.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-present 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
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 "use strict";
 
 let panelWindow = null;
 
 chrome.runtime.sendMessage(
   {
     type: "prefs.get",
     key: "show_devtools_panel"
   },
   enabled =>
   {
-    if (enabled)
+    if (enabled && "panels" in chrome.devtools)

[Sebastian Noack, 2017/09/08 20:29:06]

There should be a comment mentioning to the effected Firefox versions.

[Manish Jethani, 2017/09/08 21:19:54]

Done.

     {
       chrome.devtools.panels.create(
         "Adblock Plus",
         "icons/detailed/abp-48.png",
         "devtools-panel.html",
         panel =>
         {
           panel.onShown.addListener(window =>
           {
             panelWindow = window;
@@ skipping 10 matching lines @@
             {
               if (panelWindow)
                 panelWindow.postMessage({type: eventName, queryString}, "*");
             });
           }
         }
       );
     }
   }
 );