Re: Fwd:HTTP server driven content negotiation

From: Henrik Frystyk Nielsen (frystyk@w3.org)
Date: Mon, Mar 08 1999


Message-Id: <3.0.5.32.19990308094409.035317a0@localhost>
Date: Mon, 08 Mar 1999 09:44:09 -0500
To: Johan Hjelm <hjelm@w3.org>, Philipp Hoschka <ph@w3.org>, www-tv@w3.org
From: Henrik Frystyk Nielsen <frystyk@w3.org>
Subject: Re: Fwd:HTTP server driven content negotiation

At 15:11 3/8/99 +0100, Johan Hjelm wrote:

>>HTTP 1.1 has the Vary tag and the concept of server driven content
>>negotiation.  However, I found the use of the Vary tag somewhat vague.
>>Anyone have any experience with this tag?  Is there more info somewhere at
>>W3C on this - from the HTTP 1.1 author perhaps?

The vary header field is a mechanism for the origin server to tell a cache
what it used in the request to generate that particular response. As this
is not the case in a push situation, it really doesn't help that much.

Henrik
--
Henrik Frystyk Nielsen,
World Wide Web Consortium
http://www.w3.org/People/Frystyk