The error message isn't very helpful, but what's missing is the authserv-id. My recommendation would be to catch the error and discard the header field since it's not useful as is. Have a look at RFC 8601, Section 2.5 for an explanation of why it's required.
The error message isn't very helpful, but what's missing is the authserv-id. My recommendation would be to catch the error and discard the header field since it's not useful as is. Have a look at RFC 8601, Section 2.5 for an explanation of why it's required.