id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
12135	language_attributes() generating invalid XHTML 1.1 code	shidouhikari		"As of 2.9.1, the function <code>language_attributes()</code> is on general-template.php line 1734.

When <code>get_option('html_type')</code> is set to <code>'text/html'</code>, and <code>$doctype</code> to <code>'xhtml'</code>, both ifs are triggered, resulting in <code>lang=""en-US"" xml:lang=""en-US""</code>, which is invalid for XHTML 1.1.

Yes, I know XHTML should be served as application/xml+xhtml, but we should be able to deliver XHTML 1.1 as text/html too, the CMS shouldn't be what blocks it.

Also, seeing the logic of the code, if doctype is 'xhtml' it uses 'xml:lang', which alone is valid for any XHTML version (as long as I know). So, maybe these ifs should be excludents, and if <code>$doctype</code> is passed as 'xhtml' Wordpress only adds its xml:lang and moves on without even testing html_type."	defect (bug)	closed	normal		Validation	2.9.1	normal	wontfix	has-patch	toscho