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/*
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 * jQuery XDomainRequest Transport Plugin
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 * https://github.com/blueimp/jQuery-File-Upload
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 *
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 * Copyright 2011, Sebastian Tschan
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 * https://blueimp.net
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 *
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 * Licensed under the MIT license:
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 * http://www.opensource.org/licenses/MIT
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 *
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 * Based on Julian Aubourg's ajaxHooks xdr.js:
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 * https://github.com/jaubourg/ajaxHooks/
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 */
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/* global define, require, window, XDomainRequest */
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(function (factory) {
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    'use strict';
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    if (typeof define === 'function' && define.amd) {
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        // Register as an anonymous AMD module:
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        define(['jquery'], factory);
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    } else if (typeof exports === 'object') {
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        // Node/CommonJS:
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        factory(require('jquery'));
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    } else {
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        // Browser globals:
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        factory(window.jQuery);
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    }
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}(function ($) {
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    'use strict';
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    if (window.XDomainRequest && !$.support.cors) {
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        $.ajaxTransport(function (s) {
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            if (s.crossDomain && s.async) {
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                if (s.timeout) {
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                    s.xdrTimeout = s.timeout;
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                    delete s.timeout;
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                }
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                var xdr;
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                return {
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                    send: function (headers, completeCallback) {
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                        var addParamChar = /\?/.test(s.url) ? '&' : '?';
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                        function callback(status, statusText, responses, responseHeaders) {
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                            xdr.onload = xdr.onerror = xdr.ontimeout = $.noop;
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                            xdr = null;
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                            completeCallback(status, statusText, responses, responseHeaders);
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                        }
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                        xdr = new XDomainRequest();
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                        // XDomainRequest only supports GET and POST:
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                        if (s.type === 'DELETE') {
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                            s.url = s.url + addParamChar + '_method=DELETE';
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                            s.type = 'POST';
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                        } else if (s.type === 'PUT') {
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                            s.url = s.url + addParamChar + '_method=PUT';
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                            s.type = 'POST';
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                        } else if (s.type === 'PATCH') {
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                            s.url = s.url + addParamChar + '_method=PATCH';
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                            s.type = 'POST';
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                        }
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                        xdr.open(s.type, s.url);
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                        xdr.onload = function () {
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                            callback(
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                                200,
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                                'OK',
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                                {text: xdr.responseText},
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                                'Content-Type: ' + xdr.contentType
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                            );
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                        };
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                        xdr.onerror = function () {
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                            callback(404, 'Not Found');
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                        };
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                        if (s.xdrTimeout) {
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                            xdr.ontimeout = function () {
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                                callback(0, 'timeout');
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                            };
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                            xdr.timeout = s.xdrTimeout;
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                        }
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                        xdr.send((s.hasContent && s.data) || null);
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                    },
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                    abort: function () {
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                        if (xdr) {
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                            xdr.onerror = $.noop();
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                            xdr.abort();
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                        }
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                    }
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                };
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            }
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        });
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    }
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}));