POST is not working in IE11, GET works.

Hi,

There is a problem while execution of POST function using XMLHttpRequest, the same code works fine in IE8,

here is the code.

 if (window.XMLHttpRequest !== undefined)
  {// code for IE7+, Firefox, Chrome, Opera, Safari
  var httpOb=new XMLHttpRequest();
  }
else
  {// code for IE6, IE5
  var httpOb=new ActiveXObject("Msxml2.XMLHTTP");
  }

 httpOb.open("POST",hostString,false);
 httpOb.setRequestHeader("Content-Type","text/xml");
 httpOb.send(xmlString);
 var headers = httpOb.getAllResponseHeaders();
document.write(httpOb.responseText);

I can clearly see the httpOb gets assigned to XMLHttpRequest, while debugging in IE11,

The error message is "The System Cannot locate the resource specified", and this error comes on httpOb.send(xmlString);

assuming the url is wrong, how can it work in IE8 and gets data??

please help me, it's kind of urgent.

Thanks,

Sarva.