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YouTube - Disable Service Worker

To disable Service Worker (sw.js)

  1. // ==UserScript==
  2. // @name                YouTube - Disable Service Worker
  3. // @name:ja             YouTube - Disable Service Worker
  4. // @name:zh-TW          YouTube - Disable Service Worker
  5. // @name:zh-CN          YouTube - Disable Service Worker
  6. // @namespace           UserScripts
  7. // @version             0.0.4
  8. // @match               https://www.youtube.com/*
  9. // @match               https://www.youtube-nocookie.com/embed/*
  10. // @match               https://studio.youtube.com/live_chat*
  11. // @license             MIT
  12. // @author              CY Fung
  13. // @icon                https://raw.githubusercontent.com/cyfung1031/userscript-supports/main/icons/yt-engine.png
  14. // @grant               none
  15. // @run-at              document-start
  16. // @unwrap
  17. // @inject-into         page
  18. // @allFrames           true
  19. // @exclude             /^https?://\S+\.(txt|png|jpg|jpeg|gif|xml|svg|manifest|log|ini)[^\/]*$/
  20. //
  21. // @description         To disable Service Worker (sw.js)
  22. // @description:ja      To disable Service Worker (sw.js)
  23. // @description:zh-TW   To disable Service Worker (sw.js)
  24. // @description:zh-CN   To disable Service Worker (sw.js)
  25. //
  26. // ==/UserScript==
  27.  
  28. if (typeof ServiceWorkerContainer === "function" && typeof ServiceWorkerRegistration === "function" && typeof (ServiceWorkerContainer.prototype || 0).getRegistrations === 'function' && !ServiceWorkerContainer.prototype.register767) {
  29.     const filterSW = (e) => {
  30.         const url = typeof e === 'string' ? e : `${((e || 0).active || 0).scriptURL}`;
  31.         return url.endsWith('/sw.js');
  32.     };
  33.     const makeReject = true;
  34.     const unRegisterAll = () => {
  35.         const sw = ((typeof navigator === 'object' ? navigator : null) || 0).serviceWorker || 0;
  36.         if (sw && typeof sw.getRegistrations === 'function') {
  37.             sw.getRegistrations().then(e => e.length >= 1 && Promise.all(e.filter(filterSW).map(e => e.unregister().catch(console.warn)))).catch(console.warn);
  38.         }
  39.     }
  40.     let i = 0;
  41.     const scriptCollection = document.getElementsByTagName('script');
  42.     (new MutationObserver((mutations, observer) => {
  43.         if (typeof yt !== 'object' || scriptCollection.length === 0) return;
  44.         if (i < 394 && document.readyState === "complete") i = 394;
  45.         if (++i > 400) {
  46.             observer.disconnect();
  47.             return;
  48.         }
  49.         if (typeof navigator !== "object") return;
  50.         if (!('serviceWorker' in navigator) || !navigator.serviceWorker) return;
  51.         if (typeof navigator.serviceWorker.getRegistrations !== "function") return;
  52.         unRegisterAll();
  53.     })).observe(document, { subtree: true, childList: true, attributes: true });
  54.     ServiceWorkerContainer.prototype.register767 = ServiceWorkerContainer.prototype.register;
  55.     ServiceWorkerContainer.prototype.register = function (url, ...args) {
  56.         if (!filterSW(`${url}`)) {
  57.             return this.register767(...arguments);
  58.         }
  59.         if (i < 394) i = 394;
  60.         Promise.resolve().then(unRegisterAll);
  61.         return new Promise((resolve, reject) => {
  62.             makeReject && setTimeout(() => {
  63.                 reject(new TypeError("Failed to register a ServiceWorker."));
  64.             }, Math.round(1300 + 1700 * Math.random()) + 0.125);
  65.         });
  66.     };
  67.     Promise.resolve().then(unRegisterAll);
  68.     unRegisterAll();
  69. }