A nice little Ember Service to determine certain browser types and platforms.

browser.js

import Ember from 'ember';

export default Ember.Service.extend({
  isPrivate: Ember.computed(() => {
    let nativeStorage;

    // Safari's private tabs do not allow for the use of localStorage or sessionStorage
    // This script checks to see if either service is available
    // If not, it indicates that the user is in a private tab
    try {
      nativeStorage = localStorage || sessionStorage;
      nativeStorage.setItem('storageCheck', true);
      nativeStorage.removeItem('storageCheck');
    } catch (e) {
      nativeStorage = false;
    }

    // A deliberate true or false must be returned otherwise the result is buggy
    return nativeStorage ? false : true;
  }),

  isAndroid: Ember.computed(() => {
    return !!navigator.userAgent.match(/Android/i);
  }),

  isIOS: Ember.computed(() => {
    return !!navigator.userAgent.match(/iPhone|iPad|iPod/i);
  }),

  isWindows: Ember.computed(() => {
    return !!navigator.userAgent.match(/IEMobile/i) || navigator.userAgent.match(/WPDesktop/i);
  }),

  isMobile: Ember.computed.or('isAndroid', 'isIOS', 'isWindows')
});