I think it would be good to wait for the CSSWG to clarify things like 
https://github.com/w3c/csswg-drafts/issues/11784 before shipping.

El dia dissabte, 8 de març del 2025 a les 2:59:22 UTC+1, David Grogan va 
escriure:

> Contact emailsdgr...@chromium.org
>
> ExplainerBehaves as 100%, except it sizes the margin box regardless of 
> the value of box-sizing. 
> <https://drafts.csswg.org/css-sizing-4/#stretch-fit-sizing:~:text=Behaves%20as%20100%25%2C%20except%20it%20sizes%20the%20margin%20box%20regardless%20of%20the%20value%20of%20box%2Dsizing.>
>
> Specificationhttps://drafts.csswg.org/css-sizing-4/#sizing-values
>
> Summary
>
> A keyword for CSS sizing properties (e.g. 'width', 'height') that allows 
> elements to grow to exactly fill their containing block's available space. 
> It is similar to '100%', except the resulting size is applied to the 
> element's margin box instead of the box indicated by 'box-sizing'. Using 
> this keyword allows the element to keep its margins while still being as 
> large as possible. An unprefixed version of '-webkit-fill-available'.
>
>
> Blink componentBlink>Layout 
> <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3ELayout%22>
>
> Search tagsstretch <https://chromestatus.com/features#tags:stretch>, fill 
> <https://chromestatus.com/features#tags:fill>
>
> TAG reviewNone
>
> TAG review statusNot applicable
>
> Risks
>
>
> Interoperability and Compatibility
>
> Each of the three major engines already has a rough implementation of this 
> feature from before it was specified. (Named -moz-available and 
> -webkit-fill-available). The three behaviors are not interoperable. The 
> intention of this new 'stretch' keyword is to align the engines on this 
> specified behavior which differs slightly from each of the prefixed 
> versions. We expect the behavior of this feature to be fully interoperable. 
> Gecko has taken part in the specification discussions (e.g. 
> https://github.com/w3c/csswg-drafts/issues/11044) and has contributed 
> tests (https://bugzilla.mozilla.org/show_bug.cgi?id=1937624)
>
>
> *Gecko*: Positive (
> https://github.com/mozilla/standards-positions/issues/1054)
>
> *WebKit*: No signal (
> https://github.com/WebKit/standards-positions/issues/401)
>
> *Web developers*: Positive (
> https://github.com/web-platform-tests/interop/issues/726) An author 
> requested this to be part of Interop2025. Lots of +1 on the chrome bug.
>
> *Other signals*:
>
> Ergonomics
>
> None
>
>
> Activation
>
> Nope. Will be usable immediately
>
>
> 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
>
> Existing CSS and layout devtools panel works fine.
>
>
> Will this feature be supported on all six Blink platforms (Windows, Mac, 
> Linux, ChromeOS, Android, and Android WebView)?Yes
>
> Is this feature fully tested by web-platform-tests 
> <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>
> ?Yes
>
>
> https://wpt.fyi/results/css/css-sizing/stretch?label=master&label=experimental&product=chrome&product=firefox&product=safari&aligned&view=subtest&q=sizing%2Fstretch
>
>
> Flag name on about://flagsNone
>
> Finch feature nameLayoutStretch
>
> Requires code in //chrome?False
>
> Tracking bughttps://crbug.com/41253915
>
> Availability expectationGecko has started work and will probably finish 
> in < 1 year.
>
> Non-OSS dependencies
>
> Does the feature depend on any code or APIs outside the Chromium open 
> source repository and its open-source dependencies to function?
> No
>
> Estimated milestones
> Shipping on desktop 136
> Shipping on Android 136
> Shipping on WebView 136
>
> 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).
> https://github.com/w3c/csswg-drafts/issues/4028 -- There is consensus 
> among members of Apple, Mozilla, and Google on the issue. No significant 
> arguments against the proposal that we followed (
> https://github.com/w3c/csswg-drafts/issues/4028#issuecomment-2372348130)
>
> Link to entry on the Chrome Platform Status
> https://chromestatus.com/feature/6176445286842368?gate=5489036266045440
>
> Links to previous Intent discussionsIntent to Prototype: 
> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAOZbSt31nVWJNsfA0v30YGbceWr-M1sSYMoUFKBKMGw%2B7XzR%2BQ%40mail.gmail.com
>
>
> This intent message was generated by Chrome Platform Status 
> <https://chromestatus.com/>.
>

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