Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE)

[Ale Ale]

I've got the same problem with firefox. My web app works correctly on IE, but in firefox catch an exception like this:

uncaught exception: [Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILU RE) [nsIXMLHttpReque st.send]" nsresult: "0x80004005 (NS_ERROR_FAILU RE)" location: "JS frame :: file:///C:/Users/workspace/request.js :: sendRequest :: line 48" data: no]

# function sendRequest(url,params)
#         {                      
# var http = getXMLHttp();
var response=null;   http.open("GET",url,false);                          http.onreadystatechange=function() {
#               if (http.readyState==4) {
#                        response = http.responseText;
#                                       }
#                                  };    
# http.send();   
# }
#  
#  
# function getXMLHttp() {
#              var xmlhttp = null;
#                 if (window.ActiveXObject) {
#                    if(navigator.userAgent.toLowerCase().indexOf("msie5")!=-1)                  {
#              xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
#                     } else {
#              xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
#                     }
#                   }
#            if(!xmlhttp&&typeof(XMLHttpRequest)!='undefined') {
#                     xmlhttp = new XMLHttpRequest();
#                   }
#                   return xmlhttp;
#                   }

Someone can help me?
Thanks in advance
Ale

[acoder]

Since it's an synchronous request, there's no need for onreadystatecha nge because the browser will wait for a response before handing back to the script. So, response = http.responseTe xt; can go after the send() call.