Hi, I get the error: XPath syntax error at ... in {...get-request-parameter('quer...}: Cannot find a matching 1-argument function named { http://orbeon.org/oxf/xml/xforms}get-request-parameter(). *Note: external function calls have been disabled* when I attempt to execute a pipeline with: <p:processor name="oxf:xslt"> <p:input name="config"> <xsl:stylesheet version="2.0"> <xsl:template match="/"> <TargetURL> <xsl:variable name="location" select="/Configuration/XMLDB/Location/text()"/> <xsl:variable name="name" select="/Configuration/XMLDB/Name/text()"/> <xsl:variable name="query" select="xxforms:get-request-parameter('query')"/> <xsl:value-of select="fn:concat($location,'/',$name,'?',$query)"/> </TargetURL> </xsl:template> </xsl:stylesheet> </p:input> <p:input name="data" href="#configuration"/> <p:output name="data" id="Target"/> </p:processor> Is XPL not the correct location to retrieve the HTTP request params (should I be doing it in page-flow.xml instead?)