From a44a4342b99010fe350bb524104a4382e89ed0f2 Mon Sep 17 00:00:00 2001
From: Aman Agrawal <amanagr@zulip.com>
Date: Sat, 24 Feb 2024 07:13:01 +0000
Subject: [PATCH] message_scroll: Don't process msg scroll events in
 non-message views.

---
 web/src/message_scroll.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/web/src/message_scroll.js b/web/src/message_scroll.js
index 44884885e0..9e5dfdada9 100644
--- a/web/src/message_scroll.js
+++ b/web/src/message_scroll.js
@@ -133,8 +133,12 @@ export function initialize() {
     $(document).on(
         "scroll",
         _.throttle(() => {
+            if (message_lists.current === undefined) {
+                return;
+            }
+
             unread_ops.process_visible();
-            message_lists.current?.view.update_sticky_recipient_headers();
+            message_lists.current.view.update_sticky_recipient_headers();
             scroll_finish();
         }, 50),
     );