rem: if ((vStatus == 0) || (vStatus>=200 && vStatus<300)) 
add: var vReadyState = this.getReadyState(); if (qx.io.remote.RemoteExchange.wasSuccessful(vStatus, vReadyState, this._localRequest)) 
context: qx.Proto.getResponseXml = function(){  var vResponseXML = null;  var vStatus = this.getStatusCode();  if ((vStatus == 0) || (vStatus>=200 && vStatus<300))  {    try {      vResponseXML = this.getRequest().responseXML;    } catch(ex) {}  }  return vResponseXML;}
meta: 1005	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1005/f2d157a97131a96bce9b190ec4d71e042add754b/XmlHttpTransport.js/buggy/qooxdoo/frontend/framework/source/class/qx/io/remote/XmlHttpTransport.js