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33 lines
984 B
JavaScript
33 lines
984 B
JavaScript
'use strict';
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var inherits = require('inherits')
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, AjaxBasedTransport = require('./lib/ajax-based')
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, XhrReceiver = require('./receiver/xhr')
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, XDRObject = require('./sender/xdr')
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;
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// According to:
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// http://stackoverflow.com/questions/1641507/detect-browser-support-for-cross-domain-xmlhttprequests
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// http://hacks.mozilla.org/2009/07/cross-site-xmlhttprequest-with-cors/
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function XdrStreamingTransport(transUrl) {
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if (!XDRObject.enabled) {
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throw new Error('Transport created when disabled');
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}
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AjaxBasedTransport.call(this, transUrl, '/xhr_streaming', XhrReceiver, XDRObject);
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}
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inherits(XdrStreamingTransport, AjaxBasedTransport);
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XdrStreamingTransport.enabled = function(info) {
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if (info.cookie_needed || info.nullOrigin) {
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return false;
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}
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return XDRObject.enabled && info.sameScheme;
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};
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XdrStreamingTransport.transportName = 'xdr-streaming';
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XdrStreamingTransport.roundTrips = 2; // preflight, ajax
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module.exports = XdrStreamingTransport;
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