We utilize universal links for our auth flows through Safari. What we are seeing is when the user selects the "username and password" stored in the keychain, the form gets autofilled and sometimes autosubmitted. When this occurs the method application:continueUserActivity:restorationHandler in the application's AppDelegate does not get triggered, leaving the user stuck on Safari.
KrishnaKuchur
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution