I am also facing the exact same problem. I confirmed that associated domain setting is correct, and implementation with SecRequestSharedWebCredential works fine. Is there any solution?
One note: I got different error from different iOS version. Not sure if it is related.
iOS14.8.1
Error Domain=com.apple.AuthenticationServices.AuthorizationError Code=1000 "(null)"
iOS15.2.1
Error Domain=com.apple.AuthenticationServices.AuthorizationError Code=1001 "No credentials available for login." UserInfo={NSLocalizedFailureReason=No credentials available for login.}
rainydeerq
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