/**
* DO NOT EDIT THIS FILE.
* See the following change record for more information,
* https://www.drupal.org/node/2815083
* @preserve
**/
(function () {
  if (typeof window.CustomEvent === 'function') return false;
  function CustomEvent(event, params) {
    params = params || {
      bubbles: false,
      cancelable: false,
      detail: null
    };
    var evt = document.createEvent('CustomEvent');
    evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail);
    return evt;
  }
  window.CustomEvent = CustomEvent;
})();