Can't get the AJAX loader animation to work

[RipleWare]

I am unable to get the showLoaderOnConfirm animation working in both ngSweetAlert or ngSweetAlert2 using the following syntax:

swal({
                title: 'Forgot Password?', 
                text: 'Enter your email address and your password will be reset and emailed to you.', 
                input: 'email', 
                showCancelButton: true, 
                confirmButtonText: 'Send', 
                confirmButtonColor: "#DD6B55", 
                inputPlaceholder: 'Email address', 
                showLoaderOnConfirm: true, 
                preConfirm: function( email ) {
                    return new Promise(function( resolve, reject ) {

                        setTimeout(function() {

                            AccountFactory.resetAccount( email )
                                .then(function( data ) {

                                    swal({
                                        title: 'Success!', 
                                        text: 'A verification email has been sent to ' + email, 
                                        type: 'success', 
                                        confirmButtonText: 'Close', 
                                        allowEscapeKey: false
                                    });

                                }, function() {

                                    swal({
                                        title: 'Email not found', 
                                        text: 'Sorry, but we could not find an account matching that email address.', 
                                        type: 'error', 
                                        confirmButtonText: 'Close', 
                                        allowEscapeKey: true
                                    });

                                });

                        }, 2000 );

                    });
                }, 
                allowOutsideClick: false
            });

I understand preConfirm was introduced in ngSweetAlert2, but the showLoaderOnConfirm was not working for me in version 1 either, hence moving to version 2.

I'm just wondering if this functionality is actually supported in the Angular wrappers, or I'm doing something wrong?