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YouTube TrustedHTML Bypass

Bypass errors with userscripts caused by YouTube's TrustedHTML policy

  1. // ==UserScript==
  2. // @name         YouTube TrustedHTML Bypass
  3. // @namespace    c0d3r
  4. // @license      MIT
  5. // @version      0.1
  6. // @description  Bypass errors with userscripts caused by YouTube's TrustedHTML policy
  7. // @author       c0d3r
  8. // @match        https://www.youtube.com/*
  9. // @icon         https://www.google.com/s2/favicons?sz=64&domain=youtube.com
  10. // @run-at       document-start
  11. // @grant        none
  12. // ==/UserScript==
  13.  
  14. (function() {
  15.     'use strict';
  16.  
  17.     // WORKAROUND: TypeError: Failed to set the 'innerHTML' property on 'Element': This document requires 'TrustedHTML' assignment.
  18.     if (window.trustedTypes && trustedTypes.createPolicy) {
  19.         if (!trustedTypes.defaultPolicy) {
  20.             const passThroughFn = (x) => x;
  21.             trustedTypes.createPolicy('default', {
  22.                 createHTML: passThroughFn,
  23.                 createScriptURL: passThroughFn,
  24.                 createScript: passThroughFn,
  25.             });
  26.         }
  27.     }
  28. })();