Same issue here. Entitlements, association file validation, keychain all working. Strong password suggestion is broken with the same error as others. Is there any response from Apple on this? Has anyone found a fix for this? I've seen this issue on here and on Stack without any resolution. Is this just a problem with iOS 14.0+? I tested this in Safari and it works as expected when signing up for a new account on a website (Amazon new user).

This is still an issue. Has there been an update on this behavior?