text: /**
   * @file
   * Provides a polyfill for CustomEvent.
   *
   * This is needed for Internet Explorer 11.
   *
   * This has been copied from MDN Web Docs code samples. Code samples in the MDN
   * Web Docs are licensed under CC0.
   *
   * @see https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent/CustomEvent#Polyfill
   * @see https://developer.mozilla.org/en-US/docs/MDN/About#Code_samples_and_snippets
   */
  // eslint-disable-next-line func-names
  (function () {
    if (typeof window.CustomEvent === 'function') return false;
  
    function CustomEvent(event, params) {
      params = params || { bubbles: false, cancelable: false, detail: null };
      const evt = document.createEvent('CustomEvent');
      evt.initCustomEvent(
        event,
        params.bubbles,
        params.cancelable,
        params.detail,
      );
      return evt;
    }
  
    window.CustomEvent = CustomEvent;
  })();
  