lcrocker@nupedia.com writes:
I'm not sure when it happened, but somewhere the main Wikipedia site started putting out HTML with:
?xml version="1.0" encoding="utf-8"? ... !DOCTYPE html PUBLIC "-//W3C//DTD XHTML Basic 1.0//EN" ...
I believe this changed just a few days to a week before I added my bug report to http://www.wikipedia.com/wiki/Wikipedia_bugs on 17 November. It's rather obvious in Mozilla and Netscape 6, because the DOCTYPE triggers strict parsing mode and the tag soup method of nested <DL> elements for indents stops working.