Can I use 'about:blank' as target document?

"Michael Vincent van Rantwijk, MultiZilla" <[email protected]> Wed, 04 Apr 2007 21:33:13 +0200
Newsgroups gmane.comp.mozilla.devel.layout.xslt
Message-ID <[email protected]>
Can I use 'about:blank' as 'targetDocument' in the following example:

var newFragment = processor.transformToFragment(xmldoc, targetDocument);

I ask this because I don't see anything in the DOM when I the snippet 
below to insert it into the DOM:

targetDocument = xmldoc;
_documentElement = targetDocument.documentElement;
// Remove everything up to the document's <head> element
   while (_documentElement.hasChildNodes()) {
     _documentElement.removeChild(_documentElement.firstChild);
   }
   // Import <head> and <body> elements from the document fragment
   for (var i = 0; i < newFragment.firstChild.childNodes.length; i++) {
     var newNode = 
targetDocument.importNode(newFragment.firstChild.childNodes[i], true);
       _documentElement.appendChild(newNode);
     }

Note: everything I expect (all elements/children) are part of the 
'newFragment' so that can't be the problem.

Thanks,
Michael