Topic: Change the labelling that Pun applies to pages as XHTML to HTML 4.01..
Just something to think about:
Ian Hickson, a member of the Mozilla.org Browser Standards Compliance QA team and an invited expert in the W3C CSS Working Group, explains why XHTML should not be sent as text/html: http://hixie.ch/advocacy/xhtml
A number of problems resulting from the use of the text/html MIME type
in conjunction with XHTML content are discussed. It is suggested that
XHTML delivered as text/html is broken and XHTML delivered as text/xml
is risky, so authors intending their work for public consumption
should stick to HTML 4.01, and authors who wish to use XHTML should
deliver their markup as application/xhtml+xml.