[Webkit-unassigned] [Bug 244091] New: [WebAuthn] Conditional UI for webauthn autocomplete input fields does not work for input fields in shadow DOM

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=244091

            Bug ID: 244091
           Summary: [WebAuthn] Conditional UI for webauthn autocomplete
                    input fields does not work for input fields in shadow
                    DOM
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: All
                OS: Other
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Forms
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: kevin.flanagan at passage.id
                CC: cdumez at apple.com, wenson_hsieh at apple.com

On the latest nightly build of Webkit on macOS 13 beta 5 the conditional UI (https://github.com/w3c/webauthn/wiki/Explainer:-WebAuthn-Conditional-UI) functionality for Passkeys does not work for input fields within a shadow DOM.

Reproducing Steps:
1. Webpage with <input autocomplete="webauthn"/ >
2. Perform webauthn get with a conditional mediation:
navigator.credentials.get({
  mediation: 'conditional',
  publicKey: {
    challenge: <challengeFromServer>,
  }
});
3. Click into the input box - note that the conditional UI appears
4. Place the input element into a shadow DOM.
5. Perform same webauthn get - the conditional UI does not connect to the shadow DOM input.

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