Bypass Tab Switch Detection

Prevents websites from detecting tab switches by overriding visibility and focus events.

Verze ze dne 09. 12. 2025. Zobrazit nejnovější verzi.

Zeptejte se na otázku, přidejte recenzi nebo skript nahlašte.

Wrap lines

// ==UserScript==
// @name         Bypass Tab Switch Detection
// @namespace    http://tampermonkey.net/
// @version      1.1
// @description  Prevents websites from detecting tab switches by overriding visibility and focus events.
// @author       Devrill
// @match        *://*/*
// @icon         https://i.imgur.com/xePbmM7.png
// @license      MIT
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    window.addEventListener('blur', function(e) {
        e.stopImmediatePropagation();
    }, true);

    window.addEventListener('focus', function(e) {
        e.stopImmediatePropagation();
    }, true);

    document.addEventListener('visibilitychange', function(e) {
        e.stopImmediatePropagation();
    }, true);

    try {
        Object.defineProperty(document, 'hidden', {
            get: function() {
                return false;
            }
        });
    } catch (e) {
        console.log('Failed to override document.hidden:', e);
    }

    try {
        Object.defineProperty(document, 'visibilityState', {
            get: function() {
                return 'visible';
            }
        });
    } catch (e) {
        console.log('Failed to override document.visibilityState:', e);
    }

    var originalAddEventListener = EventTarget.prototype.addEventListener;
    EventTarget.prototype.addEventListener = function(type, listener, options) {
        if (type === 'visibilitychange' || type === 'blur' || type === 'focus') {
            console.log('Blocked event listener for:', type);
            return;
        }
        originalAddEventListener.call(this, type, listener, options);
    };

    console.log('Tab switch detection bypassed!');
})();