diff --git a/lib/pages/chat/chat.dart b/lib/pages/chat/chat.dart
index 3b2a0dedf..3137ad6c5 100644
--- a/lib/pages/chat/chat.dart
+++ b/lib/pages/chat/chat.dart
@@ -670,6 +670,7 @@ class ChatController extends State<ChatPageWithRoom>
     }
     // Pangea#
     if (state != AppLifecycleState.resumed) return;
+    if (!mounted) return;
     setReadMarker();
   }
 
diff --git a/web/index.html b/web/index.html
index 1a3730e5e..d29793e01 100644
--- a/web/index.html
+++ b/web/index.html
@@ -46,7 +46,6 @@
 
   <!-- This script adds the flutter initialization JS code -->
   <script src="flutter.js" defer></script>
-  <script src="assets/assets/js/package/olm.js"></script>
 </head>
 
 <body>
