tedster - 3:45 pm on Apr 2, 2006 (gmt 0)

I noticed that several issues come up around scripts:

A DOM-based script written for an HTML4 document has subtly different semantics in an XHTML context (e.g. element names are case insensitive and returned in uppercase in HTML4, case sensitive and always lowercase in XHTML; you have to use the namespace-aware methods in XHTML, but not in HTML4). BUT, if you send your documents as text/html, then they will use the HTML4 semantics DESPITE being XHTML! Thus, scripts are highly likely to break when the document is parsed as XHTML.

...and

Scripts that use document.write() will not work in XHTML contexts. (You have to use DOM Core methods.)

[edited by: tedster at 3:50 pm (utc) on April 2, 2006]