Issue 4577 - Remove Safari support

lib/polyfills/url.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
- * 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/>.
- */
-
-(function(global)
-{
-  "use strict";
-
-  var URLProperties = ["href", "protocol", "hostname",
-                       "host", "pathname", "search"];
-
-  // Chrome <35 and Safari 6 used the non-standard name webkitURL
-  var URL = global.URL || global.webkitURL;
-
-  // Chrome <32 didn't implement any of those properties
-  function hasProperties()
-  {
-    var dummy = new URL("about:blank");
-    for (var i = 0; i < URLProperties.length; i++)
-      if (!(URLProperties[i] in dummy))
-        return false;
-    return true;
-  }
-
-  if (!URL || !hasProperties())
-  {
-    var doc = document.implementation.createHTMLDocument();
-
-    var base = doc.createElement("base");
-    doc.head.appendChild(base);
-
-    var anchor = doc.createElement("a");
-    doc.body.appendChild(anchor);
-
-    URL = function(url, baseUrl)
-    {
-      if (baseUrl instanceof URL)
-        base.href = baseUrl.href;
-      else
-        base.href = baseUrl || "";
-      anchor.href = url;
-
-      for (var i = 0; i < URLProperties.length; i++)
-      {
-        var prop = URLProperties[i];
-        this[prop] = anchor[prop];
-      }
-    };
-  }
-
-  global.URL = URL;
-})(this);