'use strict';varinherits=require('inherits'),AjaxBasedTransport=require('./lib/ajax-based'),EventSourceReceiver=require('./receiver/eventsource'),XHRCorsObject=require('./sender/xhr-cors'),EventSourceDriver=require('eventsource');functionEventSourceTransport(transUrl){if(!EventSourceTransport.enabled()){thrownewError('Transport created when disabled');}AjaxBasedTransport.call(this,transUrl,'/eventsource',EventSourceReceiver,XHRCorsObject);}inherits(EventSourceTransport,AjaxBasedTransport);EventSourceTransport.enabled=function(){return!!EventSourceDriver;};EventSourceTransport.transportName='eventsource';EventSourceTransport.roundTrips=2;module.exports=EventSourceTransport;