PUBLIC MARKS with tag html

The smallest possible valid (X)HTML documents 15th December 2011

While preparing my HTML workshop, I’ve been re-reading W3C specs in far further detail than I ever would’ve imagined. The reading experience is far from delightful. Not only is the text the entire browser width in measure, but it’s dense and laborious to read. No wonder browser vendors have traditionally missed subtle details.

One final approach that I find very interesting was mentioned by Jan Algermissen a while ago: If your format is based on an existing one, e.g. HTML or XML, your server can actually send the same content with different MIME types, depending on the client’s capabilities. A client that only included application/json in its Accept header would then get the content labeled application/json, while one that includes the specific MIME type application/vnd.whatever would get the same content with this label applied.