From 380880137e50ff966aebacb0a6c9dbe4d32db839 Mon Sep 17 00:00:00 2001
From: Quentin Gliech <quenting@element.io>
Date: Mon, 5 May 2025 17:12:00 +0200
Subject: [PATCH] Keep the HTML lang attribute in sync with the i18next
 language (#3247)

---
 src/initializer.tsx | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/initializer.tsx b/src/initializer.tsx
index 1087dc94..d0797e9d 100644
--- a/src/initializer.tsx
+++ b/src/initializer.tsx
@@ -136,6 +136,11 @@ export class Initializer {
       lookup: () => getUrlParams().lang ?? undefined,
     });
 
+    // Synchronise the HTML lang attribute with the i18next language
+    i18n.on("languageChanged", (lng) => {
+      document.documentElement.lang = lng;
+    });
+
     await i18n
       .use(Backend)
       .use(languageDetector)