1895141 - [META] Add DevTools support for CSS Anchor Positioning

Status: NEW

(DevTools :: General, task, P3)

Description

[Jonathan Watt [:jwatt]]

Bug 1838746 is the meta bug for implementing CSS Anchor Positioning:

https://drafts.csswg.org/css-anchor-position-1/

I'm opening this bug to cover any necessary DevTools changes.

Comment 1

[Nicolas Chevobbe [:nchevobbe]]

Thanks a lot for opening this bug Jonathan. I'll go through the spec and file blocker bugs

Comment 2

[Nicolas Chevobbe [:nchevobbe]]

https://www.oddbird.net/2025/01/29/anchor-position-validity/ might be a good read so we can see how to surface those pain points

Comment 3

[Jonathan Watt [:jwatt]]

We intend to release our initial implementation of this spec in v147 (I'm sure you're probably aware).

Comment 4

[Nicolas Chevobbe [:nchevobbe]]

Thanks for the ping Jonathan
I knew it was around the corner but we had other projects that require our attentions (view transition)
This kind of wrapped up, so I'll try to see if we can squeeze in some MVP support for 147 as well :)

Comment 5

[Nicolas Chevobbe [:nchevobbe]]

see https://utilitybend.com/blog/5-css-debugging-features-i-want-to-see-in-chrome-devtools-holidays-list#:~:text=Anchoring where a dev has some wishes (that may already be covered by some bugs, I'll review that in the beginning of next week)