$txt1 $xpath1 
Failed XML::LibXML::Document::findnodes('/DAV:propfind/DAV:prop') $@ XPath error : Undefined namespace prefix
 error : xmlXPathCompiledEval: evaluation failed

Failed XML::LibXML::Element::findnodes('/DAV:propfind/DAV:prop') $@ XPath error : Undefined namespace prefix
 error : xmlXPathCompiledEval: evaluation failed

$txt2 $xpath2 
Failed XML::LibXML::Document::findnodes('/DAV:propfind/DAV:propname') $@ XPath error : Undefined namespace prefix
 error : xmlXPathCompiledEval: evaluation failed

Failed XML::LibXML::Element::findnodes('/DAV:propfind/DAV:propname') $@ XPath error : Undefined namespace prefix
 error : xmlXPathCompiledEval: evaluation failed

$txt1 $xpath3 
XML::LibXML::Document::findnodes('/D:propfind/D:prop') 1 nodes

XML::LibXML::Element::findnodes('/D:propfind/D:prop') 1 nodes

$txt2 $xpath4 
Failed XML::LibXML::Document::findnodes('/D:propfind/D:propname') $@ XPath error : Undefined namespace prefix
 error : xmlXPathCompiledEval: evaluation failed

Failed XML::LibXML::Element::findnodes('/D:propfind/D:propname') $@ XPath error : Undefined namespace prefix
 error : xmlXPathCompiledEval: evaluation failed

$txt1 $xpath5 
XML::LibXML::Document::findnodes('/propfind/prop') 0 nodes

XML::LibXML::Element::findnodes('/propfind/prop') 0 nodes

$txt2 $xpath6 
XML::LibXML::Document::findnodes('/propfind/propname') 0 nodes

XML::LibXML::Element::findnodes('/propfind/propname') 0 nodes