- From: Julian Reschke <julian.reschke@gmx.de>
- Date: Tue, 05 Nov 2013 00:28:53 +0100
- To: Ray Polk <ray.polk@oracle.com>, apps-discuss@ietf.org, draft-ietf-httpbis-p4-conditional.all@tools.ietf.org
- CC: Claudio Allocchio <Claudio.Allocchio@garr.it>, iesg@ietf.org, ietf-http-wg@w3.org
On 2013-11-04 07:45, Ray Polk wrote: > ... > 2) relax SHOULD to MAY for Last-Modified when ETag is also supplied in the following sections: > > 2.2.1. Generation > "An origin server SHOULD send Last-Modified for any selected representation for which a last modification date can be reasonably and consistently determined," > ... ...and it continues with... "...since its use in conditional requests and evaluating cache freshness ([Part6]) results in a substantial reduction of HTTP traffic on the Internet and can be a significant factor in improving service scalability and reliability..." I believe that's the reason why it is a SHOULD. Best regards, Julian
Received on Monday, 4 November 2013 23:29:30 UTC