I keep getting 401's with CORS preflight requests....

# spring

[iari]

I keep getting 401's with CORS preflight requests.
https://www.baeldung.com/spring-security-cors-preflight didn't help.

Summarized my problem here with some code on SO:
https://stackoverflow.com/questions/61725124/spring-security-getting-401s-with-cors-preflights-despite-http-cors