This repository returns 404 for requests to the root:
But it is a valid repository, for instance, this artifact retrieval works:
I don't see the point of auto-blocking in this case. A 404 from the root doesn't tell us much of anything about whether or not a remote repository is valid, and it isn't hurting Nexus in any way to receive a 404.
NXRM auto-blocks when:
- 5xx responses from the server
- 401 response
- 407 response
- Exceptions as currently handled.