Styling xref:s from xlink:href

Dear all;

Styling xref:s with xref.properties has been discussed before, and I'd like to apply this to an orgname element with the xlink:href attribute.  However, in my hands it fails, presumably because the xref.properties attribute set is not used for URI:s in simple.xlink (using version 1.76.1 of the xsl-ns-stylesheets).  Should I maybe go about this differently?

// Best wishes; Johan