[BUG] Lots of waring message `No 'Basic Authorization' header, send 401 and 'WWW-Authenticate Basic'` in log

[Hailong-am]

What is the bug?

When i enable both SAML and basic auth and login with SAML, there have lots of basic auth warning message
[2023-08-31T13:35:04,053][WARN ][o.o.s.h.HTTPBasicAuthenticator] [bcd07463160c] No 'Basic Authorization' header, send 401 and 'WWW-Authenticate Basic' printed in OpenSearch log file

How can one reproduce the bug?
Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

What is the expected behavior?
Don't print warning message or should this be debug level

What is your host/environment?

• OS: [e.g. iOS]
• Version [e.g. 22]
• Plugins

Do you have any screenshots?

enable both SAML and basic

Do you have any additional context?
Add any other context about the problem.

[stephen-crawford]

[Triage] Thank you for filing this issue. This message is a warning message that is expected when you run with the SAML endpoint configuration you are using. This is a response from not having a Basic auth header (you have none because you are using SAML). You can disregard this message.

We can follow-up this issue by making a change so that this log is TRACE/DEBUG instead of WARNING level. Then you should not see this output.

[taltsafrirpx]

any update with a solution?