Is Session not accessible in route endpoint when using fetch server side for these endpoints?

[olafur164]

Hi, like the title says.
What I'm trying to achieve is this:
We have a backend api in C# and then front end application (Nextjs)
https://localhost:7772 = Backend api

https://localhost:3000 nextjs app

now I've set up auth js and mostly everything works as expected but I want to use a proxy following this example https://github.com/nextauthjs/next-auth/pull/10761/files

Everything works correctly when I either use 'use client' and fetch in client or I navigate to https://localhost:3000/api/random-endpoint
but if I for example try and use fetch('https://localhost:3000/api/random-endpoint') inside a page or layout on the server the proxy endpoint will not pick up the session for some reason.

I'm not sure if this is to expected?