testing-library/react fireEvent is not working with happy-dom

[JakobJingleheimer]

Describe the bug

Whilst porting from JSDom to HappyDOM, I have a couple seemingly random instances of test cases erroneously failing. The issue seems to be related to fireEvent (from @testing-library/react). In JSDom and browsers (Chrome & Firefox), the behaviour the tests assert is as expected.

To Reproduce

You can observe the breakage between 689cccc (good) and da4a7ce (bad - only change is jsdom → happy-dom).

Expected behavior

DOM is updated correctly

Device:

• OS: macOS 14.7.4
• Browser: node 23.9.0
• Version: @happy-dom/global-registrator@17.4.3

Additional context
Add any other context about the problem here.