diff --git a/examples/web/react/app.tsx b/examples/web/react/app.tsx
index ed6b8eacd5d05d5b4d87917f947f4c0d701bc03c..27f27484a5077017473cd211b8881337841374fd 100644
--- a/examples/web/react/app.tsx
+++ b/examples/web/react/app.tsx
@@ -110,7 +110,12 @@ export const App = () => {
 };
 
 export const startApp = (element: string) => {
-    const root = ReactDOM.createRoot(document.getElementById(element)!);
+    const elementRef = document.getElementById(element);
+    if (!elementRef) {
+        return;
+    }
+
+    const root = ReactDOM.createRoot(elementRef);
     root.render(<App />);
 };