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zitadel/apps
Max PeintnerandGitHub 28db24fa67 fix(login): Organization domain scope, Support for External Passkey Registration (#10729)
Closes #10727
Closes #10577

# Which Problems Are Solved

This PR fixes the organization domain scope when provided and introduces
a deep-link feature for external applications, that sends users directly
into passkey registration flow using either session-based or sessionless
flows. Previously, the `/passkey/set` page only supported session-based
registration, limiting external application integration scenarios.

The `/passkey/set` page now supports:
- `code` search parameter for automatic passkey registration
- `userId` parameter for sessionless flows (similar to `/verify` and
`/password/set` pages)
- Auto-submit functionality when verification codes are provided

# How the Problems Are Solved

The organization scope is fixed by the backend handler for OIDC flows,
now correctly submitting a `suffix` queryparam to the /loginname url
which is used to show in the input field.

The passkey code support is implemented by support multiple integration
patterns:
- **Session-based**: `/passkey/set?sessionId=123&code=abc123` (existing
flow)
- **Sessionless**: `/passkey/set?userId=123456&code=abc123` (new flow)

External Application Integration Flow
1. External app triggers passkey register and obtains code
2. User verification link containing `userId`, `code` and `id`
parameters
3. User clicks link → `/passkey/set?userId=123&code=abc&id=123`
4. Page loads user information using `userId` parameter
5. Auto-submit triggers passkey registration when `code` and `id` is
present
6. User completes WebAuthn request
7. Passkey is registered and user continues authentication flow

This enables external applications to seamlessly integrate passkey
registration into their user onboarding
2025-09-30 17:58:32 +02:00
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