Discover an explicitly identified endpoint and return reviewed descriptors.
auto uses canonical URL structure only; it never sends trial requests to
guess a protocol and never falls back to another authenticated endpoint
layout. Unsupported or ambiguous hints fail before client/auth or cache
hooks are invoked.
Discover an explicitly identified endpoint and return reviewed descriptors.
autouses canonical URL structure only; it never sends trial requests to guess a protocol and never falls back to another authenticated endpoint layout. Unsupported or ambiguous hints fail before client/auth or cache hooks are invoked.