id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
235	"""lang"" attribute not allowed in XHTML 1.1"	jmillikin@…	cmlenz	In 0.5, the {{{xml:lang}}} attribute is copied to the {{{lang}}} attribute. However, in XHTML 1.1 this causes validation errors because {{{lang}}} is no longer allowed. The XHTML serializer should check which doctype is being serialized to before copying this attribute, or maybe even remove copying it from the XHTML serializer entirely (leave it in for HTML).	defect	closed	minor		Serialization	0.5	wontfix