[Greasemonkey] responseXML missing from GM_xmlhttpRequest?

[Joe la Poutre]

Hello,

According to the documentation on mozdev, the 
GM_xmlhttpRequest does only suport the .responseText field on its
results object.

The "real" XMLHttpRequest also returns a .responseXML object; is this
missing from the GM version?

I need it for an existing script in which I directly parse and
manipulate the DOM of the result XML...

Anyone an update on this, or a work around?

Cheers,

Joe.