The use of the dispatchEvent attribute on ie11 for true to throw an error:TypeError Object doesn't support this action

[GreenMashimaro]

vue-lazyload/src/lazy.js

Line 402 in ca05689

const event = new CustomEvent(state, {

hi，I'm on ie11, set the dispatchEvent property to true，browser reported an error:"TypeError: 对象不支持此操作"

The reason for this error is, 'While a window.CustomEvent object exists, it cannot be called as a constructor. Instead of new CustomEvent(...), you must use e = document.createEvent('CustomEvent') and then e.initCustomEvent(...)'
There's an IE polyfill for the CustomEvent constructor at MDN.

[hilongjw]

@GreenMashimaro fixed at v1.2.0