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Last active March 1, 2022 11:50
What would you like to do?
custom event polyfill for IE 11 (>= 9 really)
// source:
;(function() {
if (typeof window.CustomEvent === "function") return false
function CustomEvent(event, params) {
params = params || { bubbles: false, cancelable: false, detail: undefined }
var evt = document.createEvent("CustomEvent")
evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail)
return evt
CustomEvent.prototype = window.Event.prototype
window.CustomEvent = CustomEvent
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