Get server session is not working with a Nextjs 13 server request

[LoannPowell]

Environment

System:
OS: Windows 10 10.0.22621
CPU: (16) x64 AMD Ryzen 7 7700 8-Core Processor
Memory: 19.88 GB / 31.15 GB
Binaries:
Node: 20.3.1 - C:\Program Files\nodejs\node.EXE
Yarn: 1.22.19 - ~\AppData\Roaming\npm\yarn.CMD
npm: 9.8.1 - C:\Program Files\nodejs\npm.CMD
Browsers:
Edge: Spartan (44.22621.1992.0), Chromium (115.0.1901.188)
Internet Explorer: 11.0.22621.1

Reproduction URL

i dont have one

Describe the issue

I'm right now testing the new features and when i try a server nextjs component like this:

const Profile = async () => {
    const user: UserSession | null = await getServerSession(authOptions);
    const userInfo = await fetch(process.env.API_URL + 'user', {
        method: 'GET'
    }).then((res)=>res.json())
    .then ((data) => data)
    .catch((error) => console.error(error))
    return ( 
    <div className={styles.profileContainer}>
        <div>
            <h1>Profile picture {userInfo}</h1><br/>
            <EditImage imageUrl={user?.image as string}/>
        </div>
        <EditableInput endpoint='changename' text={user?.name} placeholder='Put the new name' title='Name'/>
    </div>)
}

export default Profile

the user endpoint always return unauthorized, when you try it into a client component it works normally.

How to reproduce

Create an endpoint with authentication in Nextjs 13 with session handling:

import { NextResponse } from "next/server";
import { PrismaClient } from "@prisma/client";
import { getServerSession } from 'next-auth'
import { UserSession } from "@/interfaces/user";
import { authOptions } from "../auth/[...nextauth]/authOptions";

const prisma = new PrismaClient()

export async function GET () {
    const userSession: userSession | null = await getServerSession(authOptions)
    if(userSession)
    {
        try {
            const user = await prisma.user.findUnique({
                where: {
                    id: userSession?.id
                },
            })
            return NextResponse.json({user})
        }
        catch {
            return NextResponse.json("Not found", { status: 400 })
        } 

    }
    else return NextResponse.json("Not Authorized", { status: 401 })
}

Call it inside a next server component always userSession is null

Expected behavior

It should return the session information and is returning null.

[balazsorban44]

check out the pinned issue #7423 (comment)