Fix server side. Build to lib

Author: jonanderdev

lib/utils.js

@@ -6,6 +6,13 @@ Object.defineProperty(exports, "__esModule", {
 exports.getInterfaceLanguage = getInterfaceLanguage;
 exports.validateTranslationKeys = validateTranslationKeys;
 function getInterfaceLanguage() {
+  var defaultLang = 'en-US';
+
+  // Check if it's running on server side
+  if (typeof window === 'undefined') {
+    return defaultLang;
+  }
+
   if (!!navigator && !!navigator.language) {
     return navigator.language;
   } else if (!!navigator && !!navigator.languages && !!navigator.languages[0]) {
@@ -15,7 +22,7 @@ function getInterfaceLanguage() {
   } else if (!!navigator && !!navigator.browserLanguage) {
     return navigator.browserLanguage;
   }
-  return 'en-US';
+  return defaultLang;
 }
 
 function validateTranslationKeys(translationKeys) {