ayanova/src/api/initialize.js

@@ -785,7 +785,8 @@ export default function initialize() {
                   shortDate: "YYYY-MM-DD",
                   shortTime: "hh:mm:ss A",
                   shortDateAndTime: "YYYY-MM-DD hh:mm:ss A",
-                  timeZoneOffset: res.data.timeZoneOffset
+                  timeZoneOffset: res.data.timeZoneOffset,
+                  tag: res.data.tag || "en-US"
                 });
 
                 resolve();

ayanova/src/api/locale.js

@@ -190,5 +190,55 @@ export default {
       ret = ret.replace(foundMatch, newValue);
     }
     return ret;
+  },
+  ////////////////////////////////////////////////////////
+  // attempt to determine user's preferred first browser language setting
+  // https://stackoverflow.com/a/46514247/8939
+  //
+  //
+  getFirstBrowserLanguage() {
+    var nav = window.navigator,
+      browserLanguagePropertyKeys = [
+        "language",
+        "browserLanguage",
+        "systemLanguage",
+        "userLanguage"
+      ],
+      i,
+      language,
+      len,
+      shortLanguage = null;
+
+    // support for HTML 5.1 "navigator.languages"
+    if (Array.isArray(nav.languages)) {
+      for (i = 0; i < nav.languages.length; i++) {
+        language = nav.languages[i];
+        len = language.length;
+        if (!shortLanguage && len) {
+          shortLanguage = language;
+        }
+        if (language && len > 2) {
+          return language;
+        }
+      }
+    }
+
+    // support for other well known properties in browsers
+    for (i = 0; i < browserLanguagePropertyKeys.length; i++) {
+      language = nav[browserLanguagePropertyKeys[i]];
+      //skip this loop iteration if property is null/undefined.  IE11 fix.
+      if (language == null) {
+        continue;
+      }
+      len = language.length;
+      if (!shortLanguage && len) {
+        shortLanguage = language;
+      }
+      if (language && len > 2) {
+        return language;
+      }
+    }
+
+    return shortLanguage;
   }
 };