diff --git a/app.js b/app.js
index 291b4ba..ac8b7c5 100644
--- a/app.js
+++ b/app.js
@@ -55,7 +55,8 @@ app.use(helmet({
       imgSrc: ["'self'", "data:", "https:"],
       connectSrc: ["'self'", "ws:", "wss:"],
       formAction: ["'self'"],
-      frameAncestors: ["'none'"]
+      frameAncestors: ["'none'"],
+      upgradeInsecureRequests: null // Disable for local HTTP access
     }
   }
 }));