Can't connect to TrueNAS-12.0-U2.1 with HTTP to HTTPS redirect enabled

Thanks for catching this! We will get this fixed in the nightlies here soon.

I install TrueCommand V2.0 docker (Master-20210225) and try to add TrueNAS Core-12.0-U2.1 system.

In TrueCommander I receive "websocket: bad handshake" and Offline status.

When I check network traffic between TrueNAS(TN) and TrueCommand(TC) systems there is:

TC -> TN [HTTP: GET /websocket HTTP/1.1]

TN -> TC [HTTP: HTTP/1.1 307 Temporary Redirect]

After some research I found that if I disable HTTP to HTTPS redirection in TrueNAS configuration, TrueCommand can connect without issues.

I test multiple times to be sure that this is the problem.

I can reproduce this issue every time and can provide more information if needed.