you can use finally instead

[masimplo]

Instead of

.then(function (res) {
                        element.width(oldWidth); // restore size
                        attr.$set('disabled', false);
                        spinner.stop();
                        return res;
                    }, function (res) {
                        element.width(oldWidth); // restore size
                        attr.$set('disabled', false);
                        spinner.stop();
                    });

you can use:

.finally(function()  {
    element.width(oldWidth); // restore size
    attrs.$set('disabled', false);
    spinner.stop();
});

for a more DRY approach.