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1551 lars 1 
/*
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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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 * https://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, 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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            /**
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             * Callback wrapper function
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             *
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             * @param {number} status HTTP status code
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             * @param {string} statusText HTTP status text
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             * @param {object} [responses] Content-type specific responses
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             * @param {string} [responseHeaders] Response headers string
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             */
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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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});