Uncaught exception on IE 11 (Edge Compatibility)

[rjb8682]

Bug Report

Steps

Clone this repo (my own sample project):

• Note: I'm using yarn, but of course this should work with npm with minimal changes

Run these steps

1. Run yarn install
2. Run yarn start
3. Go to localhost:8080
4. Click button on webpage
5. Type in input box

Expected Result

No errors in console

Actual Result

The following errors show in the console every time an event fires (mouse click, or keyboard press)

SCRIPT5022: Exception thrown and not caught
File: bundle.js, Line: 40029, Column: 3

When clicking the file that is shown in the error, it links to the _nonIterableSpread function from the @babel-runtime

Version

Semantic UI React version: 0.82.1
Internet Explorer update version: 11.0.70

[welcome]

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We get a lot of issues on this repo, so please be patient and we will get back to you as soon as we can.

[jhogervorst]

We’re also having issues with a Modal causing the “Invalid attempt to spread non-iterable instance” exception in IE11. It would be great if this could be fixed! I’ll be watching this thread.

[levithomason]

I don't have a windows machine available during weekends to test this. @layershifter any chance you could run a check here?

Not sure where the spread is, but it sounds like an easy fix was we can locate it.

[layershifter]

IE11 doesn't support some features of Set & Map, see #3124.