- From: Roy T. Fielding <fielding@gbiv.com>
- Date: Tue, 12 Jun 2012 22:35:12 -0700
- To: Tim Bray <tbray@textuality.com>
- Cc: Mark Nottingham <mnot@mnot.net>, ietf-http-wg@w3.org
On Jun 12, 2012, at 9:34 AM, Tim Bray wrote: > Aaaaaaaand, it turns out MNot was right; I checked with an expert, and 451 is heavily used for “redirect” in the Msft ecosystem, notably including HotMail’s hundreds of millions of users. Consider it “4xx” (which I would still argue for as opposed to 5xx). -T 4xx indicates an error by the user or user agent. I don't see any reason (aside from literary) that would justify using a 4xx code for this. 5xx is typically used for non-authoritative responses or server-imposed limitations -- a status that might be different if the user agent chose a different intermediary or tried again later. Hence, 5xx makes more sense here. ....Roy
Received on Wednesday, 13 June 2012 05:35:39 UTC