diff --git a/form_angular/src/index.html b/form_angular/src/index.html
index e55641675b96cbe7dae938f19f7d6ba8773e4c42..828ab7bfe9c9980aa038213164f2b4da36c2a307 100644
--- a/form_angular/src/index.html
+++ b/form_angular/src/index.html
@@ -8,7 +8,11 @@
   <meta name="viewport" content="width=device-width, initial-scale=1">
   <link rel="icon" type="image/x-icon" href="favicon.ico">
   <script type="text/javascript" src="https://staging-teach.cdn.ireadabc.com/h5template/h5-static-lib/js/air.js"></script>
-
+  <script>
+    if (document.domain.indexOf("iteachabc.com") > 0) {
+      document.domain = "iteachabc.com";
+    }
+  </script>
 </head>
 <body>
 <app-root></app-root>