Merge pull request stefalda#67 from jonanderdev/fix-server-side

Fix server side

Author: stefalda

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) {

src/utils.js

@@ -1,4 +1,11 @@
 export function getInterfaceLanguage() {
+  const 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]) {
@@ -8,7 +15,7 @@ export function getInterfaceLanguage() {
   } else if (!!navigator && !!navigator.browserLanguage) {
     return navigator.browserLanguage;
   }
-  return 'en-US';
+  return defaultLang;
 }
 
 export function validateTranslationKeys(translationKeys) {
@@ -24,4 +31,4 @@ export function validateTranslationKeys(translationKeys) {
       throw new Error(`${key} cannot be used as a key. It is a reserved word.`);
     }
   });
-}
+}