Docs, Keycloak screenshots are outdated, add note to enable Direct Access Grants for password grant

[gevezex]

Summary

The Keycloak screenshots in the docs appear to be from an older version. In newer Keycloak versions there is a client setting named Direct Access Grants. If this is not enabled, the password grant flow fails for this setup.

Solution

For future reference and for people having a hard time getting this to work. Please see attached screenshot.