Hello,
When using ASWebAuthenticationSession with an HTTPS callback URL (Universal Link), I receive the following error:
Authorization error: The operation couldn't be completed.
Application with identifier jp.xxxx.yyyy.dev is not associated with domain xxxx-example.go.link.
Using HTTPS callbacks requires Associated Domains using the webcredentials service type for xxxx-example.go.link.
I checked Apple’s official documentation but couldn’t find any clear statement that webcredentials is required when using HTTPS callbacks in ASWebAuthenticationSession.
What I’d like to confirm:
- Is webcredentials officially required when using HTTPS as a callback URL with ASWebAuthenticationSession?
- If so, is there any official documentation or technical note that states this requirement?
Environment
- iOS 18.6.2
- Xcode 16.4
Any clarification or official references would be greatly appreciated. Thank you.