https://cloudsupport.ru/plugins/jQueryFileUpload/fileupload.js

1var serverUrl = '/upload_files';
2$(function () {
3    'use strict';
4
5    // Initialize the jQuery File Upload widget:
6    $('#fileupload').fileupload({
7        // Uncomment the following to send cross-domain cookies:
8        //xhrFields: {withCredentials: true},
9        url: serverUrl,
10        maxNumberOfFiles: 5
11    });
12
13    // Load existing files:
14    $('#fileupload').addClass('fileupload-processing');
15    $.ajax({
16        // Uncomment the following to send cross-domain cookies:
17        //xhrFields: {withCredentials: true},
18        url: $('#fileupload').fileupload('option', 'url'),
19        dataType: 'json',
20        context: $('#fileupload')[0],
21    })
22        .always(function () {
23            $(this).removeClass('fileupload-processing');
24        })
25        .done(function (result) {
26            $(this)
27                .fileupload('option', 'done')
28                // eslint-disable-next-line new-cap
29                .call(this, $.Event('done'), {result: result});
30        });
31});
32