Query parameters for virtual machine VNC URLs won't use a reverse proxy domain as the host

If an Unraid server on the local IP 10.1.1.20 is behind a reverse proxy on example.com, the URL you get when attempting to open a VNC console to a VM looks like this:

https://example.com/plugins/dynamix.vm.manager/vnc.html?v=1746576860&resize=scale&autoconnect=true&host=10.1.1.20&port=&path=/wsproxy/5700/

Opening this URL won't work, but just changing host=10.1.1.20 to host=example.com will make it load just fine, provided the reverse proxy is set up properly.

I figured it should be possible for the context menu option VM Console (VNC) to use the host currently open in the browser as the parameter for the VNC URL.