EventTarget breaks on IE

[xTEddie]

Browser: IE 11
Version: 11.719.18362.0
Update Versions: 11.0.180

I have a project written in TypeScript. I had a sample class which extends EventTarget it did not work.

Has anyone experience the same issue?

[WynterDing]

Same issue.

This is a very low-level dependency，if this cause IE11 blank screen, many websites will be affected.

https://github.com/mysticatea/event-target-shim/blob/master/dist/event-target-shim.js#L91~L102

[Jaffsterz]

We have the same problem due to a dependency on event-target-shim in huge-uploader.
Has anyone found a solution?

Edited: we have fixed this by babel polyfilling node_modules/event-target-shim itself

[xTEddie]

I used event-target-shim-es5 which resolved this issue

[mysticatea]

Hi. I apologize for my lack of communication.

I had intended this package is used along with bundlers, and if you want to support IE11, you should configure your bundlers to transpile application.

If you don't use bundlers, use the umd build that is transpiled.

---

But some build tools don't look transpiling node_modules.

Therefore, since 6.0.0, this package includes ES5 build. Use import {} from "event-target-shim/es5" instead.