FAB provider security pages immediately redirect to home

[pahamala]

My setup is Rocky Linux 8, PostgreSQL 18, Python 3.12, Airflow 3.1.7 and FAB provider 3.2.0 with LDAP integration. Airflow web is behind Apache HTTPD reverse proxy with TLS/SSL termination.

Everything works fine except that the FAB security pages, e.g. users, just quickly flash on screen and then the browser reverts back to the Airflow main page. Is this a bug or just something wrong with my setup? I just upgraded from Airflow 3.1.4 with FAB 3.0.3 which worked ok.

Another question: the proxy config example on this page also prepares for websocket support (Upgrade, Connection). Is this necessary? I could not find websocket usage mentioned anywhere in Airflow docs.

[pahamala]

Seems that there is some problem with base_url when it is not the root path of the server. I had https://host:port/airflow there. FAB security pages started to work after I changed to https://host:port and ajusted the proxy accordingly.