Easily check if adblock is on

adBlockCheck.js

  adsBlocked = async () => {
    const testURL =
      'https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js';

    const myInit = {
      method: 'HEAD',
      mode: 'no-cors',
    };

    const myRequest = new Request(testURL, myInit);

    return await fetch(myRequest)
      .then(() => false)
      .catch(() => true);
  };