XML to XSLT transforming not working in IE11

I am using IE 11 and trying to fix an application which was working before. It still works in Chrome.
The XML is being returned from a stored procedure, but the xslt is not being able to process it. Here is the code in .js file:

function ReviewComplete(data) {
    xml = data.responseXML;
    xsl = asyncLoadXSLT('../Styles/XSLT/MyXslt.xslt');
    transformXSLT(xml, xsl, "CmmContainer");
    $("#txtComment").val('');
}

//Transform results
function transformXSLT(xml, xslt, containerID) {
    $('#' + containerID).html(" ");
    // code for IE for client side xsl transformation
    if (window.ActiveXObject || xhttp.responseType == "msxml-document") {
        ex = xml.transformNode(xsl);
        $('#' + containerID).html(ex);
    }

The code errors out at
ex = xml.transformNode(xsl);
the error says:
JavaScript runtime error: Object doesn't support property or method 'transformNode'.

I am not sure where the issue is. I tried making the xslt compatible with previous version of IE by introducing-

<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE9" />
in the xslt file, which didn't help. 
I have done it as:<xsl:template match="DATA"><meta http-equiv="X-UA-Compatible" content="IE=EmulateIE9" /><xsl:for-each select="Comment">
	....

Not sure how to include it though.
Please guide what necessary steps should I take to resolve this issue.