Error handler does not get triggered for ajax calls

```
const ApplicationSource = {
withdrawApplication: {
remote (state, application) {
return $.ajax({url: 'somepath', method: 'GET'});
},
success: applicationActions.withdrawApplicationSuccess,
error: applicationActions.withdrawApplicationFailure,
}
}
```

Whenever /somepath returns a 200 it is handled by the success handler 'withdrawApplicationSuccess' but a non-200 (for ex 500 or 404), is not handled by error handler 'withdrawApplicationFailure'.

Note We are using jquery 1.11. So I am assuming the $.ajax returns a Promise.

Is there anything wrong with this?

The reported entry point is ApplicationSource.withdrawApplication.remote, which calls $.ajax and names the withdrawApplicationSuccess and withdrawApplicationFailure handlers. Start by tracing how the AJAX promise is connected to those handlers; done means a non-200 response from /somepath reaches withdrawApplicationFailure while a 200 response still reaches withdrawApplicationSuccess.

Written by the indexing model from the issue text.