Says why a value may not be a redirection endpoint, or null if it may.
Allowed: an http or https URL with a host, or a private-use scheme containing a period (RFC 8252 section 7.1); never a fragment.
the candidate URI
optional; privateUse: false allows http(s) only
privateUse: false
the reason as a clause, or null
Says why a value may not be a redirection endpoint, or null if it may.
Allowed: an http or https URL with a host, or a private-use scheme containing a period (RFC 8252 section 7.1); never a fragment.