event-target-polyfill
EventTarget polyfill for IE11 and Edge from https://developer.mozilla.org/en-US/docs/Web/API/EventTarget#Example
Why?
Because Microsoft has been shitting the bed since forever.
What's it do?
The exact same thing that as window.EventTarget
Installation
@mattkrick/event-target-polyfill
import EventTargetPolyfill from '@mattkrick/event-target-polyfill'
window.EventTarget = EventTargetPolyfill
const foo = new EventTarget('open')