fix login

src/routes/api/auth/+server.ts

@@ -2,7 +2,7 @@
 
 import { json } from '@sveltejs/kit';
 
-export async function POST({ request }) {
+export async function POST({ request, fetch }) {
   const { code } = await request.json()
 
   if (!code) {
@@ -13,24 +13,28 @@ export async function POST({ request }) {
     })
   }
 
-  const REDIRECT_URI = `https://${process.env.SPACE_HOST}/login/callback`;
+  const first_space_host = process.env.SPACE_HOST?.split(',')[0] ?? process.env.SPACE_HOST
+
+  const REDIRECT_URI = `https://${first_space_host}/login/callback`;
   const Authorization = `Basic ${Buffer.from(
     `${process.env.OAUTH_CLIENT_ID}:${process.env.OAUTH_CLIENT_SECRET}`
   ).toString("base64")}`;
 
+  const formData = new FormData();
+  formData.append("grant_type", "authorization_code");
+  formData.append("code", code);
+  formData.append("redirect_uri", REDIRECT_URI);
+
   const request_auth = await fetch("https://huggingface.co/oauth/token", {
     method: "POST",
     headers: {
       "Content-Type": "application/x-www-form-urlencoded",
       Authorization,
     },
-    body: new URLSearchParams({
-      grant_type: "authorization_code",
-      code: code,
-      redirect_uri: REDIRECT_URI,
-    }),
+    body: formData,
   });
 
+  const data = await request_auth.json();
   const { access_token } = await request_auth.json();
 
   if (!access_token) {