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/**
* Polyfill: CustomEvent constructor
* @what new CustomEvent()
* @why Certain features, e.g. notes utilize this
* @browsers Internet Explorer 11
* @see https://caniuse.com/#feat=customevent
*/
if (typeof window.CustomEvent !== 'function') {
window.CustomEvent = function CustomEvent(event, params) {
const evt = document.createEvent('CustomEvent');
const evtParams = {
bubbles: false,
cancelable: false,
detail: undefined,
...params,
};
evt.initCustomEvent(event, evtParams.bubbles, evtParams.cancelable, evtParams.detail);
return evt;
};
window.CustomEvent.prototype = Event;
}
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