/**
* CustomEvent support for IE
*/
if (typeof window.CustomEvent !== 'function') {
window.CustomEvent = function CustomEvent(e, params) {
const options = params || { bubbles: false, cancelable: false, detail: undefined };
const evt = document.createEvent('CustomEvent');
evt.initCustomEvent(e, options.bubbles, options.cancelable, options.detail);
return evt;
};
window.CustomEvent.prototype = window.Event.prototype;
}