Hide the dataproxy iframe

Author: nono

assets/templates/login.html

@@ -124,6 +124,6 @@ <h1 class="h4 h2-md mb-0 text-center">{{.Title}}</h1>
     <script src="{{asset .Domain "/scripts/password-helpers.js"}}"></script>
     <script src="{{asset .Domain "/scripts/password-visibility.js"}}"></script>
     <script src="{{asset .Domain "/scripts/login.js"}}"></script>
-    <iframe src="{{.DataProxyCleanURL}}"></iframe>
+    <iframe src="{{.DataProxyCleanURL}}" class="d-none"></iframe>
   </body>
 </html>