From 02cd462ec2619670b630bc55ba48086e43a89945 Mon Sep 17 00:00:00 2001
From: Abijeet <abijeetpatro@gmail.com>
Date: Thu, 16 Feb 2023 01:36:19 +0530
Subject: [PATCH] jquery.uls.lcd: Add null check for navigationIndex for up
 navigation

---
 src/jquery.uls.lcd.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/jquery.uls.lcd.js b/src/jquery.uls.lcd.js
index c61dd30..8725c54 100644
--- a/src/jquery.uls.lcd.js
+++ b/src/jquery.uls.lcd.js
@@ -134,6 +134,10 @@
 				return;
 			}
 
+			if ( this.navigationIndex === null ) {
+				return;
+			}
+
 			this.navigationIndex--;
 			this.highlightLanguageOption();
 		},