xml: <?xml version="1.0"?> <?xml-stylesheet type="text/xsl" href="style.xsl"?> <nsprefix:root xmlns:nsprefix="Namespace URI">4563.84</nsprefix:root> xsl: <?xml version="1.0" ?> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:nsprefix="Namespace URI"> <xsl:template match="/nsprefix:root"> <xsl:value-of select="namespace-uri()"/> </xsl:template> </xsl:stylesheet> moz 0.9.2 result: nsprefix saxon's result: Namespace URI XPath spec says: The namespace-uri function returns the namespace URI of the expanded-name of the node in the argument node-set that is first in document order. If the argument node-set is empty, the first node has no expanded-name, or the namespace URI of the expanded-name is null, an empty string is returned. If the argument is omitted, it defaults to a node-set with the context node as its only member. I believe this bug is in NodeSetFunctionCall.cpp file: 191 case NAMESPACE_URI : 192 XMLUtils::getNameSpace(node->getNodeName(),name); But getNameSpace function returns namespace prefix by simple substring before ":" instead of resolving the prefix.

This code calls into XMLUtils::getNameSpace, which is a really funny piece of code. not. We should partially fix this by more love on bug 76070. Axel

this patch is mine, and part of my work in bug 76070.

this bug was fixed with 7670

works fine now. verifying