Contact emails
natiah...@google.com, a...@google.com

Explainer
None


Specification
https://w3c.github.io/webauthn/#sctn-getClientCapabilities


Summary

getClientCapabilities() method allows to determine which WebAuthn features are 
supported by the user's client. The method returns a list of supported 
capabilities, allowing developers to tailor authentication experiences and 
workflows based on the client's specific functionality.



Blink component
Blink>WebAuthentication


TAG review
None


TAG review status
Not applicable


Risks




Interoperability and Compatibility

None


Gecko: No signal

WebKit: Shipped/Shipping 
(https://developer.apple.com/documentation/safari-release-notes/safari-17_4-release-notes#WebAuthn)

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




Goals for experimentation




Ongoing technical constraints

None



Debuggability

None



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?
Yes
https://wpt.fyi/results/webauthn/getclientcapabilities.https.html



DevTrial instructions
https://docs.google.com/document/d/e/2PACX-1vR3yUwIFZ0LbKpJ6J4GBamP-IrBgkal3arJ_CZLbRZwBDhFTZpdpVYMsPuvB6Mjnl0heE-6r9wE7Sfw/pub


Flag name on about://flags
enable-experimental-web-platform-features


Finch feature name
WebAuthenticationClientCapabilities


Requires code in //chrome?
False


Tracking bug
https://g-issues.chromium.org/issues/360327828


Estimated milestones


DevTrial on desktop 131

DevTrial on Android 131




Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5128205875544064


Links to previous Intent discussions
Intent to Prototype: 
https://groups.google.com/a/chromium.org/g/blink-dev/c/Wb8VjXe_zT8



This intent message was generated by Chrome Platform Status.

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