IIS reverse proxy search issue

Hi,

We’ve set up to run our geoserver (windows server, 2.27.1, platform independent binary) to run behind a reverse proxy over IIS.

We can access geoserver, login, and do almost everything, but we can’t “search” in lists, because Jetty doesnt know the new hostname, if I correctly interpret the error message:

Removing the reverse proxy and hostname, it seems to work perfectly fine (accesing it by IP).

Am I doing something wrong? Most if not all tutorials only talk about the
“Proxy Base URL” setting, but not about jetty configs.

If required I can share the exact request/response information.

Kind regards,

Paul