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XMLHttpRequest getAllResponseHeaders() Method

XMLHttpRequest Object Reference Complete XMLHttpRequest Object Reference

Definition and Usage

The getAllResponseHeaders() method gets a string containing all response headers of the XMLHttpRequest object.

A response header contains file information like length, server-type, content-type, date-modified, etc.

Syntax

xmlHttp.getAllResponseHeaders()

Example

The following code outputs all response headers in a HTML element with id="headers":

Example

<html>
<body>

<span id="headers"></span>

<script type="text/javascript">
xmlhttp=null;
if (window.XMLHttpRequest)
  {// code for Firefox, Mozilla, IE7, etc.
  xmlhttp=new XMLHttpRequest();
  }
else if (window.ActiveXObject)
  {// code for IE6, IE5
  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
if (xmlhttp!=null)
  {
  xmlhttp.onreadystatechange = function()
    {
    if(xmlhttp.readyState == 4)
      {
      x=xmlhttp.getAllResponseHeaders();
      document.getElementById("headers").innerHTML=x;
      }
    }
  xmlhttp.open("GET", "note.xml", true);
  xmlhttp.send(null);
  }
else
  {
  alert("Your browser does not support XMLHTTP.");
  }
</script>
</body>
</html>

Output should be something like this (browser dependant):

Content-Length: 195 Content-Type: text/xml
ETag: "b34ba3751251c81:4cd" X-Powered-By: ASP.NET
MicrosoftOfficeWebServer: 5.0_Pub
Last-Modified: Mon, 07 Jan 2008 09:48:30 GMT

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XMLHttpRequest Object Reference Complete XMLHttpRequest Object Reference

From http://www.w3schools.com (Copyright Refsnes Data)