LGTM1, even if the name changes from `auto` to something else.

Adding or removing an ID to a dom element (or a class even) may always carry the risk of breaking behavior or styling in a page. Perhaps this is more likely in certain types of apps, perhaps not. I don't think we're treading new ground here.

On 3/31/25 3:43 PM, Vladimir Levin wrote:


        Contact emails

vmp...@chromium.org, nrosent...@chromium.org


        Explainer

https://github.com/WICG/view-transitions/blob/main/auto-name-explainer.md


        Specification

https://drafts.csswg.org/css-view-transitions-2/#auto-vt-name



        Blink component

Blink>ViewTransitions <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EViewTransitions%22>


        TAG review

https://github.com/w3ctag/design-reviews/issues/1001


        TAG review status

Issues open


        Risks



        Interoperability and Compatibility

None (if this is shipped)



/Gecko/: No signal (https://github.com/mozilla/standards-positions/issues/1198)

/WebKit/: Shipped/Shipping (https://webkit.org/blog/16301/webkit-features-in-safari-18-2)

/Web developers/: Mixed signals (https://groups.google.com/a/chromium.org/g/blink-dev/c/5LfSXRBkeAY/m/W6n9uWoVBAAJ) This functionality aligns with match-element for MPA cases. However, there is resistance to this as it may generate confusion. Please see the referenced blink-dev discussion for further information. Since this intent is split off from above, the discussion there is relevant including concerns raised around view-transition-name: auto.

/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. https://wpt.fyi/results/css/css-view-transitions?label=master&label=experimental&aligned&q=css-view-transitions%2Fauto <https://wpt.fyi/results/css/css-view-transitions?label=master&label=experimental&aligned&q=css-view-transitions%2Fauto>


        Flag name on about://flags

None


        Finch feature name

CSSViewTransitionAutoName


        Requires code in //chrome?

False


        Estimated milestones

Shipping on desktop     137
Shipping on Android     137
Shipping on WebView     137



        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 Status

https://chromestatus.com/feature/4850737974345728?gate=5408040196767744

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