File download angular and Laravel

I am trying to download a pdf file generated by laravel in AngularJs. So far i have been able to get the file from laravel but when i click the action, Angular does not download the file but just returns a response that includes the file as in the diagram below.

Response from laravel returns pdf file

How do i get the file to download?

Laravel

public function getPrintInvoice()
    {
        $pdf = PDF::loadView('crystal.invoice');
        return $pdf->download('hello.pdf');
    }

Angular

$http.get('print-invoice');

via Chebli Mohamed