diff --git a/examples/react-app/index.html b/examples/react-app/index.html
index f97d4854f..47eed01ac 100644
--- a/examples/react-app/index.html
+++ b/examples/react-app/index.html
@@ -10,6 +10,7 @@
 <body>
   <div id="root" data-ssr-root></div>
   <script type="module" src="./main.tsx"></script>
+  <h1>FOR TESTING</h1>
 </body>
 
 </html>
