I was trying to use default-xpath-namespace with XSLT 2.0 (Saxon 8) and am unable to do so.

Input:

<cv:record xmlns:cv="http://mynamespace">...</cv:record>

Stylesheet

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="2.0" default-xpath-namespace="http://mynamespace">

Using Saxon 8 within Oxygen returns an error msg that default-xpath-namespace is not allowed on <xsl:stylesheet> element.

Is this attribute supported?

The attribute is named 'xpath-default-namespace', see http://www.w3.org/TR/xslt20/#stylesheet-element.