Prevent YouTube/YouTube Music from pausing playback
// ==UserScript==
// @name YouTube-YTMusic-Nonstop
// @namespace https://github.com/nvbangg
// @version 1.0
// @description Prevent YouTube/YouTube Music from pausing playback
// @author nvbangg (https://github.com/nvbangg)
// @copyright Copyright (c) 2025 Nguyễn Văn Bằng (nvbangg, github.com/nvbangg)
// @homepage https://github.com/nvbangg/nvbangg-tools
// @icon https://www.google.com/s2/favicons?sz=64&domain=youtube.com
// @match *://*.youtube.com/*
// @run-at document-start
// @grant none
// @license MIT
// ==/UserScript==
(function() {
'use strict';
// Force page to always appear visible
Object.defineProperties(document, {
hidden: { value: false },
visibilityState: { value: 'visible' }
});
// Block visibilitychange events
addEventListener('visibilitychange', e => e.stopImmediatePropagation(), true);
// Keep _lact (last activity) fresh
const keepActive = () => { if ('_lact' in window) setInterval(() => window._lact = Date.now(), 300000); };
(function wait() { '_lact' in window ? keepActive() : setTimeout(wait, 1000); })();
})();