css.properties.resize - Support for replaced elements should be added

What type of issue is this?

Missing compatibility data

What information was incorrect, unhelpful, or incomplete?

The CSS UI spec. says

UAs may also apply it, regardless of the value of the overflow property, to:

• Replaced elements representing images or videos, such as <img>, <video>, <picture>, <svg>, <object>, or <canvas>.
• The <iframe> element.

This info is not covered by the compat data yet.

What browsers does this problem apply to, if applicable?

No response

What did you expect to see?

Different entries for the elements listed in the spec.

Did you test this? If so, how?

Stumbed over that via https://bugzilla.mozilla.org/show_bug.cgi?id=1280920. I manually checked the test cases there in Firefox 126.0.1 and Chrome 125.0.

Based on that, Chrome supports the property on iframes and Firefox doesn't support it on any of the elements (actually it does, though only when the resource couldn't be loaded and the alternative contents are displayed).

Can you link to any release notes, bugs, pull requests, or MDN pages related to this?

• https://www.w3.org/TR/css-ui-3/#resize
• https://bugzilla.mozilla.org/show_bug.cgi?id=1280920
• https://bugzilla.mozilla.org/show_bug.cgi?id=680823

Do you have anything more you want to share?

No response

MDN URL

https://developer.mozilla.org/en-US/docs/Web/CSS/resize

MDN metadata

Start with the css.properties.resize entry in the compatibility data and review the CSS UI specification plus the linked Firefox and Chrome reports. Confirm the support details for iframes and the listed replaced elements, then update the data so those element-specific entries are represented and consistent with the observed browser behavior.