On Wednesday, July 3, 2024 at 10:47:21 AM UTC+2 Anders Hartvoll Ruud wrote:

Contact emailsandr...@chromium.org

ExplainerNone

Specificationhttps://drafts.csswg.org/css-anchor-position-1/#position-
try-fallbacks

Summary

Replaces the inset-area() function with inset-area values directly within 
position-try-fallbacks. This means that you now just write e.g. 
position-try-fallbacks:top instead of position-try-fallbacks:inset-
area(top).


Just to clarify - this removes the inset-area function?
 


The CSSWG made this change shortly after CSS Anchor Positioning shipped in 
Blink:

https://github.com/w3c/csswg-drafts/issues/10320#issuecomment-2137882897


Blink componentBlink>CSS 
<https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3ECSS>

TAG reviewNone

TAG review statusNot applicable

Risks


Interoperability and Compatibility


Searching for existing cases of "inset-area(" in HTTP Archive, I found just 
a single match out of 638589186 rows:

https://css3test.com/tests/css-anchor-position-1.js


Do you know if this was used in a production site?
>From the name, one can assume it's a demo site..
 


Query used: 

#standardSQL

SELECT response_bodies.url

FROM `httparchive.response_bodies.2024_06_01_desktop` AS response_bodies

WHERE REGEXP_CONTAINS(response_bodies.response_body, r'inset\-area\(')

*Gecko*: No signal

*WebKit*: No signal

*Web developers*: No signals

*Other signals*:

WebView application risks

Does this intent deprecate or change behavior of existing APIs, such that 
it has potentially high risk for Android WebView-based applications?

None


Debuggability

None


Will this feature be supported on all six Blink platforms (Windows, Mac, 
Linux, ChromeOS, Android, and Android WebView)?No

Is this feature fully tested by web-platform-tests 
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>
?Yes

Flag name on chrome://flagsNone

Finch feature nameCSSInsetAreaValue

Requires code in //chrome?False

Estimated milestonesShipping on desktop128Shipping on Android128Shipping on 
WebView128

Anticipated spec changes

Open questions about a feature may be a source of future web compat or 
interop issues. Please list open issues (e.g. links to known github issues 
in the project for the feature specification) whose resolution may 
introduce web compat/interop risk (e.g., changing to naming or structure of 
the API in a non-backward-compatible way).
None

Link to entry on the Chrome Platform Statushttps://chromestatus.com/
feature/5116199771045888?gate=5071381116223488

This intent message was generated by Chrome Platform Status 
<https://chromestatus.com/>.

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