Problem with Teleport as bastion for TrueNAS UI

[RN232]

Hello everyone,

I am setting up a bastion with Teleport, and I am trying to configure it with the TrueNAS interface. The NAS manages to communicate with the Teleport server and receives HTTP requests. The NAS is connected through a VPN tunnel on my network in the cloud. I want to access the NAS with the VPN tunnel IP, (10.9.0.2). The problem is that when I connect with the bastion, I have this left on the screen:​

When I look in the Chrome inspector, I find this in the console:

Here is the teleport configuration:

I thank you in advance if you have any information, and I wish you a good day :)