Fix undefined error if there is no lang attribute on the html tag

AmauriC · Jun 6, 2024 · 5a2252b · 5a2252b
1 parent 3462185
commit 5a2252b
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diff --git a/tarteaucitron.js b/tarteaucitron.js
@@ -2053,8 +2053,10 @@ var tarteaucitron = {
         }
 
         // get the html lang
-        if (availableLanguages.indexOf(document.documentElement.getAttribute("lang").substr(0, 2)) !== -1) {
-          return document.documentElement.getAttribute("lang").substr(0, 2);
+        if (document.documentElement.getAttribute("lang") !== undefined && document.documentElement.getAttribute("lang") !== null) {
+            if (availableLanguages.indexOf(document.documentElement.getAttribute("lang").substr(0, 2)) !== -1) {
+                return document.documentElement.getAttribute("lang").substr(0, 2);
+            }
         }
 
         if (!navigator) { return defaultLanguage; }

diff --git a/tarteaucitron.min.js b/tarteaucitron.min.js