Bug: react/compat ignores style.aspectRatio after undefined

[krutoo]

• Check if updating to the latest Preact version resolves the issue

Describe the bug
After switching value of style.aspectRatio from undefined to number it is not applying to DOM element

It works fine in React 19

To Reproduce

Demo
https://codesandbox.io/p/github/krutoo/typescript-react/draft/billowing-hill

Steps to reproduce the behavior:

1. Go to sandbox
2. Open preview
3. See that ratio is not applied to element in devtools and visually

Expected behavior
Aspect ratio should be applied

[JoviDeCroock]

Your reproduction is set to private, we can't look at it

[krutoo]

@JoviDeCroock here is this git branch:
https://github.com/krutoo/typescript-react/tree/preact-compat-react-19-aspectRatio-bug

[JoviDeCroock]

Ah yes, this is related to the NON_DIMENSIONAL_REGEX not capturing aspect-ratio https://github.com/preactjs/preact/blob/v10.x/src/constants.js#L21 - a workaround would be to write it as its stringified format i.e. 16/9 etc

[krutoo]

@JoviDeCroock Is this something that is planned to be fixed or is it a feature of Preact that has the expected behavior?

[JoviDeCroock]

In v11 (unreleased) this is fixed, we could bandaid it in X but generally it's seen as low priority.

[krutoo]

Ok, thanks a lot for fast help, we can keep it issue open until v11 is released or close because of your workaround