YouTube - Disable Service Worker

To disable Service Worker (sw.js)

Fra og med 18.05.2025. Se den nyeste version.

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                YouTube - Disable Service Worker
// @name:ja             YouTube - Disable Service Worker
// @name:zh-TW          YouTube - Disable Service Worker
// @name:zh-CN          YouTube - Disable Service Worker
// @namespace           UserScripts
// @version             0.0.2
// @match               https://www.youtube.com/*
// @match               https://www.youtube-nocookie.com/embed/*
// @match               https://studio.youtube.com/live_chat*
// @license             MIT
// @author              CY Fung
// @icon                https://raw.githubusercontent.com/cyfung1031/userscript-supports/main/icons/yt-engine.png
// @grant               none
// @run-at              document-start
// @unwrap
// @inject-into         page
// @allFrames           true
// @exclude             /^https?://\S+\.(txt|png|jpg|jpeg|gif|xml|svg|manifest|log|ini)[^\/]*$/
//
// @description         To disable Service Worker (sw.js)
// @description:ja      To disable Service Worker (sw.js)
// @description:zh-TW   To disable Service Worker (sw.js)
// @description:zh-CN   To disable Service Worker (sw.js)
//
// ==/UserScript==

if (typeof ServiceWorkerContainer === "function" && typeof ServiceWorkerRegistration === "function" && typeof (ServiceWorkerContainer.prototype || 0).getRegistrations === 'function') {
    const filterSW = (reg) => {
        if (typeof reg === 'string') {
            return `${reg}`.endsWith('sw.js');
        }
        if (reg instanceof ServiceWorkerRegistration) {
            return `${reg.scriptURL}`.endsWith('/sw.js');
        }
    };
    const unRegisterAll = () => {
        const sw = ((typeof navigator === 'object' ? navigator : null) || 0).serviceWorker || 0;
        if (sw && typeof sw.getRegistrations === 'function') {
            sw.getRegistrations().then(e => e.length >= 1 && Promise.all(e.filter(filterSW).map(e => e.unregister().catch(console.warn)))).catch(console.warn);
        }
    }
    let i = 0;
    (new MutationObserver((mutations, observer) => {
        if (typeof yt !== 'object' || !document.querySelector('script')) return;
        if (i < 394 && document.readyState === "complete") i = 394;
        if (++i > 400) {
            observer.disconnect();
            return;
        }
        if (typeof navigator !== "object") return;
        if (!('serviceWorker' in navigator) || !navigator.serviceWorker) return;
        if (typeof navigator.serviceWorker.getRegistrations !== "function") return;
        unRegisterAll();
    })).observe(document, { subtree: true, childList: true, attributes: true });
    ServiceWorkerContainer.prototype.register767 = ServiceWorkerContainer.prototype.register;
    ServiceWorkerContainer.prototype.register = function () {
        if (!filterSW(`${arguments[0]}`)) {
            return this.register767(...arguments);
        }
        if (i < 394) i = 394;
        Promise.resolve().then(unRegisterAll);
        return new Promise(() => { });
    };
    Promise.resolve().then(unRegisterAll);
    unRegisterAll();
}