There was a recent change to the specification for container queries in css-conditional-5 to look up the flat tree instead of shadow-including ancestors for query container candidates.
This matches the behavior that Gecko shipped.
Chromium wants to change the implementation to match the new spec.
WebKittens
@anttijk
Title of the spec
CSS query container flat tree lookup
URL to the spec
https://drafts.csswg.org/css-conditional-5/
URL to the spec's repository
No response
Issue Tracker URL
No response
Explainer URL
No response
TAG Design Review URL
No response
Mozilla standards-positions issue URL
No response
WebKit Bugzilla URL
No response
Radar URL
No response
Description
There was a recent change to the specification for container queries in css-conditional-5 to look up the flat tree instead of shadow-including ancestors for query container candidates.
This matches the behavior that Gecko shipped.
Chromium wants to change the implementation to match the new spec.