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Chasen Le Hara
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2.2.2
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‎dist/amd/can-ajax.js‎

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/*can-ajax@2.2.1#can-ajax*/
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define([
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'require',
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'exports',
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'module',
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'can-globals/global',
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'can-reflect',
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'can-namespace',
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'can-parse-uri',
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'can-param'
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], function (require, exports, module) {
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(function (global, require, exports, module) {
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'use strict';
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var Global = require('can-globals/global');
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var canReflect = require('can-reflect');
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var namespace = require('can-namespace');
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var parseURI = require('can-parse-uri');
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var param = require('can-param');
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var xhrs = [
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function () {
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return new XMLHttpRequest();
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},
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function () {
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return new ActiveXObject('Microsoft.XMLHTTP');
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},
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function () {
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return new ActiveXObject('MSXML2.XMLHTTP.3.0');
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},
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function () {
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return new ActiveXObject('MSXML2.XMLHTTP');
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}
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], _xhrf = null;
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var originUrl = parseURI(Global().location.href);
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var globalSettings = {};
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var makeXhr = function () {
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if (_xhrf != null) {
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return _xhrf();
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}
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for (var i = 0, l = xhrs.length; i < l; i++) {
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try {
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var f = xhrs[i], req = f();
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if (req != null) {
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_xhrf = f;
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return req;
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}
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} catch (e) {
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continue;
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}
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}
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return function () {
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};
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};
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var contentTypes = {
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json: 'application/json',
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form: 'application/x-www-form-urlencoded'
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};
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var _xhrResp = function (xhr, options) {
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try {
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var type = options.dataType || xhr.getResponseHeader('Content-Type').split(';')[0];
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if (type && (xhr.responseText || xhr.responseXML)) {
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switch (type) {
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case 'text/xml':
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case 'xml':
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return xhr.responseXML;
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case 'text/json':
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case 'application/json':
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case 'text/javascript':
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case 'application/javascript':
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case 'application/x-javascript':
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case 'json':
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return xhr.responseText && JSON.parse(xhr.responseText);
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default:
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return xhr.responseText;
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}
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} else {
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return xhr;
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}
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} catch (e) {
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return xhr;
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}
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};
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function ajax(o) {
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var xhr = makeXhr(), timer, n = 0;
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var deferred = {}, isFormData;
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var promise = new Promise(function (resolve, reject) {
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deferred.resolve = resolve;
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deferred.reject = reject;
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});
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var requestUrl;
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var isAborted = false;
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promise.abort = function () {
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isAborted = true;
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xhr.abort();
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};
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o = [
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{
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userAgent: 'XMLHttpRequest',
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lang: 'en',
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type: 'GET',
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data: null,
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dataType: 'json'
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},
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globalSettings,
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o
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].reduce(function (a, b, i) {
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return canReflect.assignDeep(a, b);
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});
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if (!o.contentType) {
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o.contentType = o.type.toUpperCase() === 'GET' ? contentTypes.form : contentTypes.json;
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}
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if (o.crossDomain == null) {
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try {
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requestUrl = parseURI(o.url);
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o.crossDomain = !!(requestUrl.protocol && requestUrl.protocol !== originUrl.protocol || requestUrl.host && requestUrl.host !== originUrl.host);
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} catch (e) {
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o.crossDomain = true;
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}
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}
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if (o.timeout) {
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timer = setTimeout(function () {
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xhr.abort();
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if (o.timeoutFn) {
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o.timeoutFn(o.url);
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}
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}, o.timeout);
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}
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xhr.onreadystatechange = function () {
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try {
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if (xhr.readyState === 4) {
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if (timer) {
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clearTimeout(timer);
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}
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if (xhr.status < 300) {
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if (o.success) {
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o.success(_xhrResp(xhr, o));
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}
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} else if (o.error) {
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o.error(xhr, xhr.status, xhr.statusText);
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}
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if (o.complete) {
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o.complete(xhr, xhr.statusText);
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}
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if (xhr.status >= 200 && xhr.status < 300) {
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deferred.resolve(_xhrResp(xhr, o));
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} else {
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deferred.reject(_xhrResp(xhr, o));
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}
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} else if (o.progress) {
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o.progress(++n);
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}
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} catch (e) {
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deferred.reject(e);
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}
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};
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var url = o.url, data = null, type = o.type.toUpperCase();
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var isJsonContentType = o.contentType === contentTypes.json;
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var isPost = type === 'POST' || type === 'PUT';
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if (!isPost && o.data) {
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url += '?' + (isJsonContentType ? JSON.stringify(o.data) : param(o.data));
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}
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xhr.open(type, url, true);
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var isSimpleCors = o.crossDomain && [
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'GET',
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'POST',
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'HEAD'
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].indexOf(type) !== -1;
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isFormData = typeof FormData !== 'undefined' && o.data instanceof FormData;
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if (isPost) {
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if (isFormData) {
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data = o.data;
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} else {
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data = isJsonContentType && !isSimpleCors ? typeof o.data === 'object' ? JSON.stringify(o.data) : o.data : param(o.data);
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}
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var setContentType = isJsonContentType && !isSimpleCors ? 'application/json' : 'application/x-www-form-urlencoded';
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xhr.setRequestHeader('Content-Type', setContentType);
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} else {
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xhr.setRequestHeader('Content-Type', o.contentType);
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}
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if (!isSimpleCors) {
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xhr.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
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}
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if (o.xhrFields) {
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for (var f in o.xhrFields) {
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xhr[f] = o.xhrFields[f];
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}
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}
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function send() {
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if (!isAborted) {
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xhr.send(data);
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}
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}
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if (o.beforeSend) {
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const result = o.beforeSend.call(o, xhr, o);
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if (canReflect.isPromise(result)) {
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result.then(send).catch(deferred.reject);
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return promise;
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}
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}
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send();
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return promise;
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}
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module.exports = namespace.ajax = ajax;
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module.exports.ajaxSetup = function (o) {
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globalSettings = o || {};
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};
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}(function () {
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return this;
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}(), require, exports, module));
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});

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