jQuery and AJAX response header

cballou's solution will work if you are using an old version of jquery. In newer versions you can also try:

  $.ajax({   type: 'POST',   url:'url.do',   data: formData,   success: function(data, textStatus, request){        alert(request.getResponseHeader('some_header'));   },   error: function (request, textStatus, errorThrown) {        alert(request.getResponseHeader('some_header'));   }  });

According to docs the XMLHttpRequest object is available as of jQuery 1.4.

If this is a CORS request, you may see all headers in debug tools (such as Chrome->Inspect Element->Network), but the xHR object will only retrieve the header (via xhr.getResponseHeader('Header')) if such a header is a simple response header:

• Content-Type
• Last-modified
• Content-Language
• Cache-Control
• Expires
• Pragma

If it is not in this set, it must be present in the Access-Control-Expose-Headers header returned by the server.

About the case in question, if it is a CORS request, one will only be able to retrieve the Location header through the XMLHttpRequest object if, and only if, the header below is also present:

Access-Control-Expose-Headers: Location

If its not a CORS request, XMLHttpRequest will have no problem retrieving it.

 var geturl;  geturl = $.ajax({    type: "GET",    url: 'http://....',    success: function () {      alert("done!"+ geturl.getAllResponseHeaders());    }  });