1884872 - [css-properties-values-api] Properties registered in shadow DOM should be globally registered

Status: NEW

(Core :: CSS Parsing and Computation, enhancement)

Description

[Zach Hoffman [:zrhoffman]]

WPT that should pass (after the test update lands): https://wpt.fyi/results/css/css-properties-values-api/at-property-shadow.html

Comment 1

[Emilio Cobos Álvarez (:emilio)]

Hmm, not sure I agree? It's pretty unique

Comment 2

[Zach Hoffman [:zrhoffman]]

Yeah, we don't seem to do that anywhere else, and that behavior does not seem particularly helpful.

I think this behavior is specified as of <https://github.com/w3c/css-houdini-drafts/commit/ed18327ec9e7> and <https://github.com/w3c/css-houdini-drafts/pull/1085>, so changing it would probably be a CSSWG discussion, right?

Comment 3

[Emilio Cobos Álvarez (:emilio)]

I commented on https://github.com/w3c/css-houdini-drafts/pull/1085#issuecomment-1991302473, but yes.

Comment 4

[Zach Hoffman [:zrhoffman]]

Thanks Emilio!

Comment 5

[Zach Hoffman [:zrhoffman]]

The spec is expected to be republished <https://github.com/w3c/css-houdini-drafts/issues/1073#issuecomment-2015072260> on 2024-03-26, removing the prose specifying that @property should be ignored if its stylesheet is within a shadow tree.

Comment 7

[Thomas Wisniewski [:twisniewski]]

Given that no other browser is doing this yet, let's remove this as a blocker on shipping (bug 1864818) for now.

Comment 8

[Zach Hoffman [:zrhoffman]]

No longer blocks Interop 2024 Custom Properties, as resolved by <https://github.com/web-platform-tests/interop/issues/673>.

Comment 9

[Zach Hoffman [:zrhoffman]]

Updated the URL to reflect where current discussion is.