Issue 1675 - Use String.trim() to strip leading and trailing whitespaces (Firefox)

lib/filterClasses.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 129 matching lines @@
 {
   if (!text)
     return text;
 
   // Remove line breaks and such
   text = text.replace(/[^\S ]/g, "");
 
   if (/^\s*!/.test(text))
   {
     // Don't remove spaces inside comments
-    return text.replace(/^\s+/, "").replace(/\s+$/, "");
+    return text.trim();
   }
   else if (Filter.elemhideRegExp.test(text))
   {
     // Special treatment for element hiding filters, right side is allowed to contain spaces
     let [, domain, separator, selector] = /^(.*?)(#\@?#?)(.*)$/.exec(text);
-    return domain.replace(/\s/g, "") + separator + selector.replace(/^\s+/, "").replace(/\s+$/, "");
+    return domain.replace(/\s/g, "") + separator + selector.trim();
   }
   else
     return text.replace(/\s/g, "");
 }
 
 /**
  * Class for invalid filters
  * @param {String} text see Filter()
  * @param {String} reason Reason why this filter is invalid
  * @constructor
@@ skipping 773 matching lines @@
 function ElemHideException(text, domains, selector)
 {
   ElemHideBase.call(this, text, domains, selector);
 }
 exports.ElemHideException = ElemHideException;
 
 ElemHideException.prototype =
 {
   __proto__: ElemHideBase.prototype
 };