Anti-Visibility-Detection

Anti Visibility Detection

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Anti-Visibility-Detection
// @match        *.yuketang.cn/*
// @run-at       document-start
// @description Anti Visibility Detection
// @author EthanDong
// @license MIT

// @version 0.0.1.20251117150128
// @namespace https://greasyfork.org/users/1526411
// ==/UserScript==

(function() {
    // 1. 阻止事件监听
    const blockEvents = ["visibilitychange", "webkitvisibilitychange", "blur", "focusout"];
    blockEvents.forEach(ev => {
        document.addEventListener(ev, e => e.stopImmediatePropagation(), true);
        window.addEventListener(ev, e => e.stopImmediatePropagation(), true);
    });

    // 2. 伪造属性
    Object.defineProperty(document, "visibilityState", {
        get: () => "visible"
    });

    Object.defineProperty(document, "hidden", {
        get: () => false
    });
})();