Ionic / Angular.JS - Laravel 5.1 JWT Token Refersh Issue

I am having issue with refreshing a JWT Token in my Ionic / Angularj JS app. The restful api when tested in postman successfully returns a refreshed token and I can use it in postman to make other rest calls. However, when I try storing the refreshed token on my localStorage by over riding the existing token. I have looked at laravel / angularjs JWT token refresh for clues but the issue I have is not with Laravel generating the token. It is the Ionic / Angular.js not being able to store the refreshed token. Can someone please advise?

**Laravel token refresh call**

 public function myToken()
  {

      $token = JWTAuth::getToken();
      $refreshtoken = JWTAuth::refresh($token);
      $token = $refreshtoken;
      return response()->json(compact('token'));

  }


**Angular.JS token call**
if($localStorage.hasOwnProperty("token") === true) {
                        var mytoken = $localStorage.token;

via Chebli Mohamed