From 3c5965936be2bb0613dcee2e3906bce982964674 Mon Sep 17 00:00:00 2001
From: Leilei332 <LeiYiXia29@outlook.com>
Date: Sat, 22 Nov 2025 12:42:35 +0800
Subject: [PATCH] Update checkLanguageCode

---
 core/modules/utils/utils.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/core/modules/utils/utils.js b/core/modules/utils/utils.js
index 96ca7b92b..65d23ff6a 100644
--- a/core/modules/utils/utils.js
+++ b/core/modules/utils/utils.js
@@ -165,9 +165,10 @@ Check whether a language code is supported by Intl
 */
 exports.checkLanguageCode = lang => {
 	try {
-		"a".localeCompare("a", lang);
+		Intl.Collator(lang);
 		return true;
 	} catch(e) {
+		console.warn(`Warning: ${lang} is not a valid language code.`);
 		return false;
 	}
 }