I am having some JavaScript issues that seem to only occur in Internet Explorer 10 on Windows 8 (IE 7, 8, and 9 all work fine). The basic jist of what I am doing is getting XML and XSL from a web service and then transforming them in JavaScript to render on the page using the Sys.Net.XMLDOM object.

XMLDOM = Sys.Net.XMLDOM;

var xsl = // XSL gotten from somewhere else 
var xmlString = // XML gotten from somewhere else as a string...
var xml = new XMLDOM(xmlString);

var content = xml.transformNode(xsl);

When I use the above code in IE 10, I get:

Object doesn't support property or method 'transformNode'

Any ideas on why Internet Explorer 10 is doing this?

EDIT

I have also tried this:

xmldoc = new ActiveXObject("Msxml2.DOMDocument"); 
xmldoc.async = false; 
xmldoc.load(xml); 

xsldoc = new ActiveXObject("Msxml2.DOMDocument"); 
xsldoc.async = false; 
xsldoc.load(xsl); 

var content = xmldoc.transformNode(xsldoc);

Which works in all previous versions of IE, but in IE 10 I get:

Reference to undeclared namespace prefix: 'atom'.