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@marcoscaceres marcoscaceres commented Dec 16, 2025

Closes #???

The following tasks have been completed:

  • Modified Web platform tests (link)

Implementation commitment:

  • WebKit
  • Chromium (link to issue)
  • Gecko (link to issue)

Documentation and checks

  • Affects privacy
  • Affects security
  • Pinged MDN
  • Updated Explainer
  • Updated digitalcredentials.dev

Preview | Diff

@marcoscaceres marcoscaceres marked this pull request as ready for review January 13, 2026 12:51
@marcoscaceres marcoscaceres requested a review from a team as a code owner January 13, 2026 12:51
@marcoscaceres marcoscaceres changed the title Define "Present credential requests" algorithm. Define "present credential requests" algorithm. Jan 13, 2026
marcoscaceres added a commit to marcoscaceres/WebKit that referenced this pull request Jan 13, 2026
…if AbortSignal races with picker result

rdar://163295172
https://bugs.webkit.org/show_bug.cgi?id=305363

Reviewed by NOBODY (OOPS!).

Fix race and crash in CredentialRequestCoordinator by settling promises only after picker teardown and safely handling abort reasons.
Ensure credential requests always settle after the picker UI has fully torn down.

This change:

- Defers promise settlement until the picker dismiss callback fires
- Better handles aborts during presentation and teardown
- Avoids capturing unprotected JSValues across async boundaries
- Keeps coordinator state transitions more consistent (with better checks)

It also more closely follows the spec:
w3c-fedid/digital-credentials#420
w3c-fedid/digital-credentials#419

* LayoutTests/imported/w3c/web-platform-tests/digital-credentials/get.tentative.https-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/digital-credentials/non-fully-active.https-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/digital-credentials/non-fully-active.https.html:
* Source/WebCore/Modules/identity/CredentialRequestCoordinator.cpp:
(WebCore::CredentialRequestCoordinator::PickerStateGuard::PickerStateGuard):
(WebCore::CredentialRequestCoordinator::PickerStateGuard::~PickerStateGuard):
(WebCore::CredentialRequestCoordinator::setState):
(WebCore::CredentialRequestCoordinator::prepareCredentialRequest):
(WebCore::CredentialRequestCoordinator::handleDigitalCredentialsPickerResult):
(WebCore:: const):
(WebCore::CredentialRequestCoordinator::dismissPickerAndSettle):
(WebCore::CredentialRequestCoordinator::abortPicker):
(WebCore::CredentialRequestCoordinator::contextDestroyed):
(WebCore::CredentialRequestCoordinator::~CredentialRequestCoordinator):
(): Deleted.
(WebCore::CredentialRequestCoordinator::presentPicker): Deleted.
(WebCore::CredentialRequestCoordinator::finalizeDigitalCredential): Deleted.
* Source/WebCore/Modules/identity/CredentialRequestCoordinator.h:
* Source/WebCore/Modules/identity/DigitalCredential.cpp:
(WebCore::DigitalCredential::discoverFromExternalSource):
marcoscaceres added a commit to marcoscaceres/WebKit that referenced this pull request Jan 14, 2026
…if AbortSignal races with picker result

rdar://163295172
https://bugs.webkit.org/show_bug.cgi?id=305363

Reviewed by NOBODY (OOPS!).

Fix race and crash in CredentialRequestCoordinator by settling promises only after picker teardown and safely handling abort reasons.
Ensure credential requests always settle after the picker UI has fully torn down.

This change:

- Defers promise settlement until the picker dismiss callback fires
- Better handles aborts during presentation and teardown
- Avoids capturing unprotected JSValues across async boundaries
- Keeps coordinator state transitions more consistent (with better checks)

It also more closely follows the spec:
w3c-fedid/digital-credentials#420
w3c-fedid/digital-credentials#419

* LayoutTests/imported/w3c/web-platform-tests/digital-credentials/get.tentative.https-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/digital-credentials/non-fully-active.https-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/digital-credentials/non-fully-active.https.html:
* Source/WebCore/Modules/identity/CredentialRequestCoordinator.cpp:
(WebCore::CredentialRequestCoordinator::PickerStateGuard::PickerStateGuard):
(WebCore::CredentialRequestCoordinator::PickerStateGuard::~PickerStateGuard):
(WebCore::CredentialRequestCoordinator::setState):
(WebCore::CredentialRequestCoordinator::prepareCredentialRequest):
(WebCore::CredentialRequestCoordinator::handleDigitalCredentialsPickerResult):
(WebCore:: const):
(WebCore::CredentialRequestCoordinator::dismissPickerAndSettle):
(WebCore::CredentialRequestCoordinator::abortPicker):
(WebCore::CredentialRequestCoordinator::contextDestroyed):
(WebCore::CredentialRequestCoordinator::~CredentialRequestCoordinator):
(): Deleted.
(WebCore::CredentialRequestCoordinator::presentPicker): Deleted.
(WebCore::CredentialRequestCoordinator::finalizeDigitalCredential): Deleted.
* Source/WebCore/Modules/identity/CredentialRequestCoordinator.h:
* Source/WebCore/Modules/identity/DigitalCredential.cpp:
(WebCore::DigitalCredential::discoverFromExternalSource):
marcoscaceres added a commit to marcoscaceres/WebKit that referenced this pull request Jan 15, 2026
…if AbortSignal races with picker result

rdar://163295172
https://bugs.webkit.org/show_bug.cgi?id=305363

Reviewed by NOBODY (OOPS!).

Fix race and crash in CredentialRequestCoordinator by settling promises only after picker teardown and safely handling abort reasons.
Ensure credential requests always settle after the picker UI has fully torn down.

This change:

- Defers promise settlement until the picker dismiss callback fires
- Better handles aborts during presentation and teardown
- Avoids capturing unprotected JSValues across async boundaries
- Keeps coordinator state transitions more consistent (with better checks)

It also more closely follows the spec:
w3c-fedid/digital-credentials#420
w3c-fedid/digital-credentials#419

* LayoutTests/imported/w3c/web-platform-tests/digital-credentials/get.tentative.https-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/digital-credentials/non-fully-active.https-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/digital-credentials/non-fully-active.https.html:
* Source/WebCore/Modules/identity/CredentialRequestCoordinator.cpp:
(WebCore::CredentialRequestCoordinator::PickerStateGuard::PickerStateGuard):
(WebCore::CredentialRequestCoordinator::PickerStateGuard::~PickerStateGuard):
(WebCore::CredentialRequestCoordinator::setState):
(WebCore::CredentialRequestCoordinator::prepareCredentialRequest):
(WebCore::CredentialRequestCoordinator::handleDigitalCredentialsPickerResult):
(WebCore:: const):
(WebCore::CredentialRequestCoordinator::dismissPickerAndSettle):
(WebCore::CredentialRequestCoordinator::abortPicker):
(WebCore::CredentialRequestCoordinator::contextDestroyed):
(WebCore::CredentialRequestCoordinator::~CredentialRequestCoordinator):
(): Deleted.
(WebCore::CredentialRequestCoordinator::presentPicker): Deleted.
(WebCore::CredentialRequestCoordinator::finalizeDigitalCredential): Deleted.
* Source/WebCore/Modules/identity/CredentialRequestCoordinator.h:
* Source/WebCore/Modules/identity/DigitalCredential.cpp:
(WebCore::DigitalCredential::discoverFromExternalSource):
marcoscaceres added a commit to marcoscaceres/WebKit that referenced this pull request Jan 15, 2026
…if AbortSignal races with picker result

rdar://163295172
https://bugs.webkit.org/show_bug.cgi?id=305363

Reviewed by NOBODY (OOPS!).

Fix race and crash in CredentialRequestCoordinator by settling promises only after picker teardown and safely handling abort reasons.
Ensure credential requests always settle after the picker UI has fully torn down.

This change:

- Defers promise settlement until the picker dismiss callback fires
- Better handles aborts during presentation and teardown
- Avoids capturing unprotected JSValues across async boundaries
- Keeps coordinator state transitions more consistent (with better checks)

It also more closely follows the spec:
w3c-fedid/digital-credentials#420
w3c-fedid/digital-credentials#419

* LayoutTests/imported/w3c/web-platform-tests/digital-credentials/get.tentative.https-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/digital-credentials/non-fully-active.https-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/digital-credentials/non-fully-active.https.html:
* Source/WebCore/Modules/identity/CredentialRequestCoordinator.cpp:
(WebCore::CredentialRequestCoordinator::PickerStateGuard::PickerStateGuard):
(WebCore::CredentialRequestCoordinator::PickerStateGuard::~PickerStateGuard):
(WebCore::CredentialRequestCoordinator::setState):
(WebCore::CredentialRequestCoordinator::prepareCredentialRequest):
(WebCore::CredentialRequestCoordinator::handleDigitalCredentialsPickerResult):
(WebCore:: const):
(WebCore::CredentialRequestCoordinator::dismissPickerAndSettle):
(WebCore::CredentialRequestCoordinator::abortPicker):
(WebCore::CredentialRequestCoordinator::contextDestroyed):
(WebCore::CredentialRequestCoordinator::~CredentialRequestCoordinator):
(): Deleted.
(WebCore::CredentialRequestCoordinator::presentPicker): Deleted.
(WebCore::CredentialRequestCoordinator::finalizeDigitalCredential): Deleted.
* Source/WebCore/Modules/identity/CredentialRequestCoordinator.h:
* Source/WebCore/Modules/identity/DigitalCredential.cpp:
(WebCore::DigitalCredential::discoverFromExternalSource):
* Source/WebKit/WebProcess/DigitalCredentials/DigitalCredentialsCoordinator.cpp:
(WebKit::DigitalCredentialsCoordinator::showDigitalCredentialsPicker):
(WebKit::DigitalCredentialsCoordinator::provideRawDigitalCredentialRequests):
* Source/WebKit/WebProcess/DigitalCredentials/DigitalCredentialsCoordinator.h:
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