From 66c3be18fc863f2008a927628a4af4296460a950 Mon Sep 17 00:00:00 2001
From: Edoardo Abati <29585319+EdAbati@users.noreply.github.com>
Date: Sat, 7 Nov 2026 08:35:22 +0100
Subject: [PATCH] Allow custom-admin host in Astro dev server

In local dev, /admin/login/ fails with a 500 because Django fetches its
admin base template from the Astro dev server at http://custom-admin:3002
and Vite answers 403 for that hostname.

The check came in with the Astro ^5.0.5 to ^7.4.4 upgrade in #4841, which
moved Vite from 6.0.3 to 8.3.5. Django connects using the Docker service
name, so that hostname has to be allowed. Only local dev is affected,
because astro_proxy returns 404 when DEBUG is off.
---
 backend/custom_admin/astro.config.mjs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/backend/custom_admin/astro.config.mjs b/backend/custom_admin/astro.config.mjs
index b37be356e9..a93e8a0bbc 100644
--- a/backend/custom_admin/astro.config.mjs
+++ b/backend/custom_admin/astro.config.mjs
@@ -2,6 +2,9 @@ import react from "@astrojs/react";
 import { defineConfig } from "astro/config";
 
 export default defineConfig({
+  server: {
+    allowedHosts: ["custom-admin"],
+  },
   vite: {
     logLevel: "info",
     server: {