Show Messenger on specific pages on mobile

Show Messenger on specific pages on mobile.js

// PASTE THIS AFTER GIST TRACKING CODE
function isMobile() {
  // credit to Timothy Huang for this regex test:
  // https://dev.to/timhuang/a-simple-way-to-detect-if-browser-is-on-a-mobile-device-with-javascript-44j3
  return /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent);
}

document.addEventListener('gistReady', function () {
  gist.chat('hide');
    
  if(isMobile() && window.location.href.indexOf("/PAGE_PATTERN/") > -1) {
    gist.chat('show');
  }
});