bug1457335-histography.io-ua-change.js (1176B)
1 /* This Source Code Form is subject to the terms of the Mozilla Public 2 * License, v. 2.0. If a copy of the MPL was not distributed with this 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 4 5 "use strict"; 6 7 /** 8 * Bug 1457335 - histography.io - Override UA & navigator.vendor 9 * WebCompat issue #1804 - https://webcompat.com/issues/1804 10 * 11 * This site is using a strict matching of navigator.userAgent and 12 * navigator.vendor to allow access for Safari or Chrome. Here, we set the 13 * values appropriately so we get recognized as Chrome. 14 */ 15 16 /* globals exportFunction */ 17 18 console.info( 19 "The user agent has been overridden for compatibility reasons. See https://webcompat.com/issues/1804 for details." 20 ); 21 22 const CHROME_UA = navigator.userAgent + " Chrome for WebCompat"; 23 24 const nav = Object.getPrototypeOf(navigator.wrappedJSObject); 25 26 const ua = Object.getOwnPropertyDescriptor(nav, "userAgent"); 27 ua.get = exportFunction(() => CHROME_UA, window); 28 Object.defineProperty(nav, "userAgent", ua); 29 30 const vendor = Object.getOwnPropertyDescriptor(nav, "vendor"); 31 vendor.get = exportFunction(() => "Google Inc.", window); 32 Object.defineProperty(nav, "vendor", vendor);