diff --git a/src/backend/index.ts b/src/backend/index.ts
index 6a2e593..21c06b2 100644
--- a/src/backend/index.ts
+++ b/src/backend/index.ts
@@ -39,6 +39,7 @@ app.use(
     strictTransportSecurity: config.enableHttpsSecurity,
     crossOriginOpenerPolicy: config.enableHttpsSecurity,
     crossOriginResourcePolicy: config.enableHttpsSecurity,
+    originAgentCluster: false, // Disable Origin-Agent-Cluster header to avoid browser warnings
   })
 );