Passkey registration via QR code fails

[keepassium]

Description
Creating a passkey with another device (via QR code) fails with no passcode in KeePassium and an error message on the target device.

How to reproduce
Steps to reproduce the behavior:

1. In Chrome, open https://passkeys-debugger.io, set "Authenticator Attachment" to "Cross-platform" and click "Start Passkey Creation"
2. Chrome will show a QR code, scan it with iPhone's camera
3. Follow the passkey creation steps
4. Observe the error on the website:

   The operation either timed out or was not allowed. See: https://www.w3.org/TR/webauthn-2/#sctn-privacy-considerations-client."

Expected behavior
Passkey should be successfully registered.

Environment:

• Device: iPhone
• OS: iOS 18
• App Version: 2.0.158

Additional context

#297 (comment) [thanks, jasperweiss]
#297 (comment) [thanks, danielwagn3r]

[danielwagn3r]

I've to update my previous comment. Creation of the passkey doesn't fail always. I've seen a passkey created via QR-code now, too. But the error message on the website (Auth0 in my case) stays the same.

My environment:
Desktop: Windows 10/11 + Chrome 131
Phone: iOS 18.2
KeePassium: v2.0.158

[litcc]

Interestingly, when I try to add a key using a QR code on that site, the key is added successfully in KeePassium, but the browser flashes back

My environment:
Desktop: Windows 11
Edge 131.0.2903.99 | Chrome 131.0.6778.140 | Chrome 131.0.6778.205
Phone: iOS 18.2
KeePassium：v2.0.158 | KeePassium Pro: v2.0.158