/* * This file is part of Privacy Badger * Copyright (C) 2018 Electronic Frontier Foundation * * Privacy Badger 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. * * Privacy Badger 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 Privacy Badger. If not, see . */ function getPageScript() { // code below is not a content script: no chrome.* APIs ///////////////////// // return a string return "(" + function (NAVIGATOR, OBJECT) { OBJECT.defineProperty(OBJECT.getPrototypeOf(NAVIGATOR), "doNotTrack", { get: function doNotTrack() { return "1"; } }); OBJECT.defineProperty(OBJECT.getPrototypeOf(NAVIGATOR), "globalPrivacyControl", { get: function globalPrivacyControl() { return "1"; } }); // save locally to keep from getting overwritten by site code } + "(window.navigator, Object));"; // code above is not a content script: no chrome.* APIs ///////////////////// } // END FUNCTION DEFINITIONS /////////////////////////////////////////////////// (function () { // don't inject into non-HTML documents (such as XML documents) // but do inject into XHTML documents if (document instanceof HTMLDocument === false && ( document instanceof XMLDocument === false || document.createElement('div') instanceof HTMLDivElement === false )) { return; } // TODO race condition; fix waiting on https://crbug.com/478183 chrome.runtime.sendMessage({ type: "checkDNT" }, function (enabled) { if (enabled) { window.injectScript(getPageScript()); } }); }());