Roger Johansson: Non well-formed XHTML. Using XHTML that is not well-formed. Why? If XHTML is served as âapplication/xhtml+xmlâ, which it should be, strictly compliant browsers, like those based on Mozilla, will not render non well-formed XHTML. Note that this site currently does not serve all documents as âapplication/xhtml+xmlâ, for certain reasons explained in my post on Content negotiation.
Randy: Everybody seems to agree w/ me. Mal-formed XHTML sucks. Don't do it.