Using Internet Explorer 11 and XPath result in a Catalog Client Script. An undefined error occurs.

1. Open Internet Explorer 11.
2. Have a Client Script running on a catalog item using XPathResult that is not wrapped in a function.
   The error message XPathResult undefined appears.
3. Switch to compatibility mode.
   The error does not occur.

XPATH is not supported in Internet Explorer currently.

For more information, see:
http://stackoverflow.com/questions/23560438/xpathresult-is-undefined-in-ie11
http://status.modern.ie/domlevel3xpath#domlevel3xpath

The workaround is to wrap the wanted script in a function. For example:

if( XPathResult ) { 
.. your code here... 
} 

 

Another workaround is to use Compatibility Mode in Internet Explorer.