diff --git a/bot_direct.py b/bot_direct.py
index 468196c..34042b5 100644
--- a/bot_direct.py
+++ b/bot_direct.py
@@ -171,7 +171,10 @@ async def http_handler(websocket):
 async def process_request(connection, request):
     """Serve HTML for HTTP requests, upgrade for WebSocket."""
     if request.path == "/" or request.path == "/test.html":
-        headers = Headers([("Content-Type", "text/html; charset=utf-8")])
+        headers = Headers([
+            ("Content-Type", "text/html; charset=utf-8"),
+            ("Cache-Control", "no-store, no-cache, must-revalidate"),
+        ])
         return Response(200, "OK", headers, HTML_PAGE.encode())
     if request.path == "/ws":
         return None  # Let WebSocket handler take over