fix: remove the possbility of memory leak and performance penalty

strongloop · Jun 9, 2020 · d01d89a · d01d89a
1 parent d2aae4a
commit d01d89a
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/packages/runtime/src/helper.ts b/packages/runtime/src/helper.ts
@@ -880,6 +880,9 @@ export function getLanguageFromRequest(
     return defaultLanguage;
   }
 
+  // Copy the array so that it won't be mutated
+  appLanguages = [...appLanguages];
+
   appLanguages.unshift(defaultLanguage);
   acceptLanguage.languages(appLanguages);
   const bestLanguage = acceptLanguage.get(reqLanguage);