From 0d23169a9ce855e58f1a5bd7bfe1c8586abb9291 Mon Sep 17 00:00:00 2001
From: DerEchteAlec <bycraky@gmail.com>
Date: Thu, 13 Aug 2026 04:31:18 +0200
Subject: [PATCH] FIX - bind preview server to one loopback address

---
 frontend/vite.config.ts | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/frontend/vite.config.ts b/frontend/vite.config.ts
index a85b7b7..0c130de 100644
--- a/frontend/vite.config.ts
+++ b/frontend/vite.config.ts
@@ -34,8 +34,8 @@ export default defineConfig(({ command }) => ({
       allow: [fileURLToPath(new URL('.', import.meta.url))],
       strict: false,
     },
-    // YouTube rejects otherwise valid embeds when the dev page uses the
-    // numeric loopback origin. Keep the local UI on the localhost origin.
-    host: 'localhost',
+    // Bind one loopback family so strictPort also rejects a second dev server.
+    // Open the UI through localhost so embeds still receive that page origin.
+    host: '127.0.0.1',
   },
 }))