$.ajax({
    url: '@Url.RouteUrl("Uploads")',
    type: 'POST',
    headers: { 'Filename': file.name },
    data: formData,
    cache: false,
    contentType: false,
    processData: false,
    xhr: function () {
        var myXhr = $.ajaxSettings.xhr();
        if (myXhr.upload) {
            myXhr.upload.addEventListener('progress', function (e) {
                if (e.lengthComputable) {
                    $('progress').attr({
                        value: e.loaded,
                        max: e.total,
                    });
                }
            }, false);
        }
        myXhr.addEventListener('load', function (e) {
            console.log('upload complete');
        });
        return myXhr;
    }
});