Simplest ajax upload file

xhr-ajax-upload-file.js

var data = new FormData();
data.append('file', src.files[0]);

$.ajax({
    url: url,
    type: 'POST',
    data: data,
    processData: false,
    contentType: false,
    xhr: function() {
        var xhr = $.ajaxSettings.xhr();
        if (xhr.upload)
        {
            xhr.upload.addEventListener('progress', function (event) {
                console.log(event);
            }, false);
        }
        return xhr;
    },
    success: function(data) {
        console.log(data)
    }
});