'use strict';varinherits=require('inherits'),AjaxBasedTransport=require('./lib/ajax-based'),XdrStreamingTransport=require('./xdr-streaming'),XhrReceiver=require('./receiver/xhr'),XDRObject=require('./sender/xdr');functionXdrPollingTransport(transUrl){if(!XDRObject.enabled){thrownewError('Transport created when disabled');}AjaxBasedTransport.call(this,transUrl,'/xhr',XhrReceiver,XDRObject);}inherits(XdrPollingTransport,AjaxBasedTransport);XdrPollingTransport.enabled=XdrStreamingTransport.enabled;XdrPollingTransport.transportName='xdr-polling';XdrPollingTransport.roundTrips=2;// preflight, ajaxmodule.exports=XdrPollingTransport;