1870370 - Firefox fails WPT css-properties-values-api/at-property-animation.html

Status: NEW

(Core :: CSS Parsing and Computation, defect)

Description

[Daniel Holbert [:dholbert]]

We fail 16/17 subtests in this WPT (which is part of interop-2023 Custom Properties focus-area):
https://wpt.fyi/results/css/css-properties-values-api/at-property-animation.html
https://wpt.live/css/css-properties-values-api/at-property-animation.html

This test-failure was originally classified as bug 1846516, but things have evolved a bit since then; see bug 1846516 comment 40. Zach says to pass this test, we'll need bug 1869185, as well as bug 1811897 to fix the API that the test uses to read back the property-values.

Comment 1

[Zach Hoffman [:zrhoffman]]

Bug 1533327 makes the first assertions of the 4 remaining tests in at-property-animation.html fail:

• CSS animation setting "inherit" for a custom property on a keyframe is responsive to changing that custom property on the parent.
• JS-originated animation setting "inherit" for a custom property on a keyframe is responsive to changing that custom property on the parent.
• CSS animation setting "currentColor" for a custom property on a keyframe is responsive to changing "color" on the parent.
• JS-originated animation setting "currentColor" for a custom property on a keyframe is responsive to changing "color" on the parent.