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YouTube Ad Blocker

Block YouTube ads effectively

  1. // ==UserScript==
  2. // @name         YouTube Ad Blocker
  3. // @namespace    http://tampermonkey.net/
  4. // @version      3.0
  5. // @description  Block YouTube ads effectively
  6. // @author       Patrick
  7. // @match        https://*.youtube.com/*
  8. // @icon         https://www.google.com/s2/favicons?sz=64&domain=youtube.com
  9. // @grant        none
  10. // @run-at       document-start
  11. // ==/UserScript==
  12.  
  13. (function() {
  14.     // Patches the ads for cold loading
  15.     var ytInitialPlayerResponse = null;
  16.  
  17.     function getter() {
  18.         return ytInitialPlayerResponse;
  19.     }
  20.  
  21.     function setter(data) {
  22.         ytInitialPlayerResponse = { ...data, adPlacements: [] };
  23.     }
  24.  
  25.     if (window.ytInitialPlayerResponse) {
  26.         Object.defineProperty(window.ytInitialPlayerResponse, 'adPlacements', {
  27.             get: () => [],
  28.             set: (a) => undefined,
  29.             configurable: true
  30.         });
  31.     } else {
  32.         Object.defineProperty(window, 'ytInitialPlayerResponse', {
  33.             get: getter,
  34.             set: setter,
  35.             configurable: true
  36.         });
  37.     }
  38.  
  39.     // FETCH POLYFILL
  40.     (function() {
  41.         const { fetch: origFetch } = window;
  42.         window.fetch = async (...args) => {
  43.             const response = await origFetch(...args);
  44.  
  45.             if (response.url.includes('/youtubei/v1/player')) {
  46.                 const text = () =>
  47.                     response
  48.                         .clone()
  49.                         .text()
  50.                         .then((data) => data.replace(/adPlacements/, 'odPlacement'));
  51.  
  52.                 response.text = text;
  53.                 return response;
  54.             }
  55.             return response;
  56.         };
  57.     })();
  58.  
  59.     // OTHER STUFF - just in case an ad gets through
  60.     (function() {
  61.         window.autoClick = setInterval(function() {
  62.             try {
  63.                 const btn = document.querySelector('.videoAdUiSkipButton,.ytp-ad-skip-button');
  64.                 if (btn) {
  65.                     btn.click();
  66.                 }
  67.                 const ad = document.querySelector('.ad-showing');
  68.                 if (ad) {
  69.                     document.querySelector('video').playbackRate = 10;
  70.                 }
  71.             } catch (ex) {}
  72.         }, 100);
  73.  
  74.         window.inlineAdsInterval = setInterval(function() {
  75.             try {
  76.                 const div = document.querySelector('#player-ads');
  77.                 if (div) {
  78.                     div.parentNode.removeChild(div);
  79.                 }
  80.             } catch (ex) {}
  81.         }, 500);
  82.     })();
  83. })();