From 27a15e124744f0eeebb327593a63c4ca551d581b Mon Sep 17 00:00:00 2001
From: Julian Lam <julian@nodebb.org>
Date: Wed, 15 Feb 2023 13:08:03 -0500
Subject: [PATCH] fix: crash on navigator unread update when backing out of a
 topic

---
 public/src/modules/navigator.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/public/src/modules/navigator.js b/public/src/modules/navigator.js
index ef66590d21..dc49369cd9 100644
--- a/public/src/modules/navigator.js
+++ b/public/src/modules/navigator.js
@@ -348,7 +348,7 @@ define('navigator', ['forum/pagination', 'components', 'hooks', 'alerts', 'trans
 	}
 
 	async function updateUnreadIndicator(index) {
-		if (ajaxify.data.postcount <= ajaxify.data.bookmarkThreshold) {
+		if (!paginationBlockUnreadEl.length || ajaxify.data.postcount <= ajaxify.data.bookmarkThreshold) {
 			return;
 		}