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/*
* This file is part of Privacy Badger <https://www.eff.org/privacybadger>
* 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 <http://www.gnu.org/licenses/>.
*/
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());
}
});
}());
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