I am using a Login a little different than the tutorial. I call a rest service and input an email and password for the request to the API. And if succesful I recieve data back. But If not then I receive an error response from the rest service. But my app continues to navigate to page on success of service. I have added a screenshot below of the return error when not including email or password, and another of when I do succesfully call the service. But what I have noticed is that in the debug console it shows that I have still succesfully called the API service, even when not having submitted the email or password, Screenshot below. What can I do to prevent page navigation on rest error? I have tried the java in other forums on the service error event. inline.png?1465704870[/img] [/url]