- From: Martin J. Dürst <duerst@it.aoyama.ac.jp>
- Date: Fri, 22 Feb 2013 18:29:32 +0900
- To: Robin Berjon <robin@w3.org>
- CC: Larry Masinter <masinter@adobe.com>, Henri Sivonen <hsivonen@iki.fi>, "www-tag@w3.org List" <www-tag@w3.org>
On 2013/02/22 18:22, Robin Berjon wrote: > On 22/02/2013 08:22 , Larry Masinter wrote: >> Perhaps the TAG finding on "Authoritative metadata" needs to be >> re-reviewed and made into a consensus Req (and sniffing between >> XHTML and HTML disallowed). > > I would support the TAG revisiting the topic of Authoritative Metadata, > but with a view on pointing out that it is an architectural antipattern. > Information that is essential and authoritative about the processing of > a payload should be part of the payload and not external to it. Anything > else is brittle and leads to breakage. > > The sniffing behaviour is a consequence of media types as an > architectural construct, not an alternative to it. > > (I say "should", not "must", because in situations in which both end > points can agree upon a vocabulary then they can exchange information > more efficiently by dropping essential data.) > > Further, I think that the TAG should take this occasion to issue a > recommendation to people building formats that they include format > identifying information as essential, typically with a magic number, > first non-blank line, etc. In that scenario, how would you get a browser to display any format with such a magic number,... as plain text? Many formats, HTML and XHTML included, are at the same time plain text. Regards, Martin.
Received on Friday, 22 February 2013 09:30:15 UTC