- From: Mark Nottingham <mnot@mnot.net>
- Date: Wed, 4 May 2011 20:27:15 +1000
- To: HTTP Working Group <ietf-http-wg@w3.org>
<http://tools.ietf.org/html/draft-ietf-httpbis-p6-cache-14#section-3.4> The intro for Pragma currently says: The "Pragma" header field is used to include implementation-specific directives that might apply to any recipient along the request/response chain. All pragma directives specify optional behavior from the viewpoint of the protocol; however, some systems &MAY; require that behavior be consistent with the directives. Since adding new pragma directives is deprecated, this doesn't make much sense any more. Any objection to rewriting the paragraph above as: The "Pragma" header field allows backwards compatibility with HTTP/1.0 caches, so that clients can specify a "no-cache" request that they will understand (as Cache-Control was not defined until HTTP/1.1). In HTTP/1.0, it was defined as an extensible field for implementation-specified directives for recipients. This specification deprecates such extensions to improve interoperability. ? -- Mark Nottingham http://www.mnot.net/
Received on Wednesday, 4 May 2011 10:27:41 UTC