diff --git a/ui/public/index.html b/ui/public/index.html
index 8485870fb..a8268a85a 100644
--- a/ui/public/index.html
+++ b/ui/public/index.html
@@ -25,6 +25,14 @@
       Learn how to configure a non-root public URL by running `npm run build`.
     -->
     <title>MIZU</title>
+    <script>
+      try {
+        // Injected from server
+        window.isEnt = __IS_STANDALONE__
+      }
+      catch (e) {
+      }
+    </script>
   </head>
   <body>
     <noscript>You need to enable JavaScript to run this app.</noscript>
