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Modify platform Only.
// ==UserScript==
// @name Platform Spoofer
// @namespace https://viayoo.com/
// @version 0.6.1
// @description Modify platform Only.
// @author Via
// @match *://*/*
// @exclude *://*.baidu.*/*
// @exclude *://*.bing.*/*
// @exclude *://*.github.com/*
// @exclude *://*.google.*/*
// @exclude *://*.ifeng.com/*
// @exclude *://*.iqiyi.com/*
// @exclude *://*.mgtv.com/*
// @exclude *://*.pptv.com/*
// @exclude *://*.qq.com/*
// @exclude *://*.sina.com.cn/*
// @exclude *://*.sohu.com/*
// @exclude *://*.v.qq.com/*
// @exclude *://*.yandex.*/*
// @exclude *://github.com/*
// @exclude *://greasyfork.org/*
// @exclude *://rebang.today/*
// @exclude *://scriptcat.org/*
// @exclude *://twitter.com/*
// @exclude *://x.com/*
// @license MIT
// @grant none
// @run-at document-start
// ==/UserScript==
(function() {
'use strict';
const FAKE_PLATFORM = 'Mac';
const spoofNavigator = new Proxy(navigator, {
get(target, prop) {
return prop === 'platform' ? FAKE_PLATFORM : Reflect.get(target, prop);
},
getOwnPropertyDescriptor(target, prop) {
if (prop === 'platform') {
return {
value: FAKE_PLATFORM,
writable: false,
configurable: true,
enumerable: true
};
}
return Object.getOwnPropertyDescriptor(target, prop);
}
});
try {
const descriptor = Object.getOwnPropertyDescriptor(navigator, 'platform');
if (descriptor?.configurable) {
Object.defineProperty(navigator, 'platform', {
get: () => FAKE_PLATFORM,
configurable: true,
enumerable: true
});
} else if (navigator.__defineGetter__) {
navigator.__defineGetter__('platform', () => FAKE_PLATFORM);
}
Object.defineProperty(window, 'navigator', {
value: spoofNavigator,
writable: false,
configurable: true
});
const protoDescriptor = Object.getOwnPropertyDescriptor(Navigator.prototype, 'platform');
if (protoDescriptor?.configurable) {
Object.defineProperty(Navigator.prototype, 'platform', {
get: () => FAKE_PLATFORM,
configurable: true,
enumerable: true
});
}
const originalIndexOf = String.prototype.indexOf;
String.prototype.indexOf = function(searchString) {
if (this === FAKE_PLATFORM) {
if (searchString === 'Win' || searchString === 'Linux' || searchString === 'X11') return -1;
if (searchString === 'Mac') return 0;
}
return originalIndexOf.call(this, searchString);
};
} catch (e) {
console.warn('Platform spoofing fallback:', e);
window.navigator = spoofNavigator;
}
Object.freeze(window.navigator);
if (document.readyState === 'loading') {
document.addEventListener('DOMContentLoaded', () => {
if (navigator.platform !== FAKE_PLATFORM) {
Object.defineProperty(window, 'navigator', {
value: spoofNavigator,
writable: false,
configurable: true
});
Object.freeze(window.navigator);
}
}, {
once: true
});
}
})();