- From: Dan Connolly <connolly@w3.org>
- Date: Thu, 27 Sep 2007 08:36:48 -0500
- To: Misha Wolf <Misha.Wolf@reuters.com>
- Cc: www-tag@w3.org, semantic-web-ig list <semantic-web-ig.list@reuters.com>
On Thu, 2007-09-27 at 14:00 +0100, Misha Wolf wrote: > Hi all, > > Which URI should be persistent when redirects are used? The one > submitted in the initial HTTP request (having been derived, eg, > from an XML instance document), the one obtained through the > redirect, or both? Well, the more persistent URIs the better, so both. The question isn't very clear. There are distinct HTTP redirection codes for "don't use this URI any more; use that other one from now on" (301) and "keep using this URI, but for now, look over there for what you're after" (302). http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.3 So if you're trying to be good about persistent URIs, but the world changes and you have to react, putting up a 301 for 18 months or so seems like a reasonable strategy. Mark Baker and I proposed 3 years, actually, when we wrote up something related... http://www.markbaker.ca/2002/09/draft-connolly-w3c-accessible-registries-00.txt -- Dan Connolly, W3C http://www.w3.org/People/Connolly/
Received on Thursday, 27 September 2007 13:37:13 UTC