XML解析后的“对象”与“对象文档”，IE 9不接受

Question

I am facing an issue after XML parse in IE9. When I alerted the variable where I have parsed the XML, in all the other browser except IE9 I can see the text [Object] but in IE9 it is showing me [Object Document]. For this reason the variable value is not assigned to input parameter. Code:

if (window.DOMParser)
  {
  parser=new DOMParser();
  xmlDoc=parser.parseFromString(txt,"text/xml");
  }
else // Internet Explorer
  {
  xmlDoc=new ActiveXObject("Microsoft.XMLDOM");
  xmlDoc.async=false;
  xmlDoc.loadXML(txt); 
  }


xslProc = xslt.createProcessor();
xslProc.input = xmlDoc;

In IE9 I can see the IF block is executing every time, xmlDoc alerted as [Object Document] [in IE9 only], and the code stopped when I assigned the xmlDoc object in input parameter (last line), all other browsers including IE7, IE8 running fine. Any help will be appreciated. Thanks in advance.

EDIT: XSLT format

<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
    <xsl:output method="html" />
    <xsl:param name="selectedSKU"></xsl:param>
    <xsl:param name="pageName">skuset</xsl:param>
    <xsl:param name="selectedSWATCH"></xsl:param>
    <xsl:param name="colFlag">0</xsl:param>
    <xsl:param name="xslStoreId">10001</xsl:param>
    <xsl:param name="xslLangId">-1</xsl:param>
    <xsl:param name="xslCatalogId">10051</xsl:param>
    <xsl:param name="exitURL"></xsl:param>
    <xsl:param name="iskiosk">0</xsl:param>

    <xsl:param name="AddToCart"></xsl:param>
    <xsl:param name="Qty"></xsl:param>

    <xsl:template match="/">
        <xsl:apply-templates select="//product[@id=$selectedSKU]" />
    </xsl:template>
    <xsl:variable name="label_stars">
        <xsl:value-of select="productcatalog/labels/label[@key='common.stars']" />
    </xsl:variable>
    <xsl:variable name="label_reviews">
        <xsl:value-of select="productcatalog/labels/label[@key='common.reviews']" />
    </xsl:variable>
</xsl:stylesheet> 

The XSLT file is preety long...so I have attached one block with it.

Answer 1

IE versions before IE 9 don't have its own XML parser but rather can use any version of MSXML to parse XML. MSXML (since version 3) also supports XSLT transformations.

With IE 9 IE now has its own XML parser you can use from script with DOMParser to construct XML DOM documents. However IE has no own support to apply XSLT transformations on such documents and MSXML does not work with IE's DOM documents as input to XSLT.

Thus if you want to use XSLT with IE 9 you need to make sure you construct an MSXML DOM document with new ActiveXObject('Microsoft.XMLDOM') (respectively new ActiveXObject('Msxml2.DOMDocument.3.0') is recommended these days) and not with DOMParser . So basically your feature check if (window.DOMParser) is not the right approach if you want to apply XSLT with a browser, rather use eg

var input;

if (window.XSLTProcessor && window.DOMParser) {
  input = new DOMParser().parseFromString(txt, 'application/xml');
}
else if (window.ActiveXObject) {
  input = new ActiveXObject('Msxml2.DOMDocument.3.0');
}

if (input) {
  xslProc = xslt.createProcessor();
  xslProc.input = input;
  ...
}