Access Workspace Web does not work with returning Code 302

Hi all, I'm trying to setup sagemath with jupyter. I got everything running and

sage -n jupyter

sage -n jupyter

via supervisord in the background and an access via the main.tf file, but jupyter returns a 302 to the location

/tree?

/tree?

and it seems the code-server passes that 302 towards the users freshly opened browser window resulting in the browser to got to

coder.domain.com/tree?

coder.domain.com/tree?

which returns a 404. How can i tell coder to follow redirects, before returning the response to the user?