Noissue - Use includes instead of indexOf

lib/filterComposer.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2017 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 100 matching lines @@
         getKey(page, frame), specificOnly
       );
 
       if (!filter)
       {
         let filterText = url.replace(/^[\w-]+:\/+(?:www\.)?/, "||");
 
         if (specificOnly)
           filterText += "$domain=" + docDomain;
 
-        if (filters.indexOf(filterText) == -1)
+        if (!filters.includes(filterText))
           filters.push(filterText);
       }
     }
 
     // If we couldn't generate any blocking filters, fallback to element hiding
     if (filters.length == 0 && !checkWhitelisted(page, frame,
                                                  RegExpFilter.typeMap.ELEMHIDE))
     {
       // Generate CSS selectors based on the element's "id" and
       // "class" attribute.
@@ skipping 119 matching lines @@
 
 port.on("composer.quoteCSS", (message, sender) =>
 {
   return quoteCSS(message.CSS);
 });
 
 ext.pages.onLoading.addListener(page =>
 {
   page.sendMessage({type: "composer.content.finished"});
 });