- From: Martin Thomson <martin.thomson@gmail.com>
- Date: Tue, 28 Feb 2012 08:30:19 -0800
- To: Julian Reschke <julian.reschke@gmx.de>
- Cc: Mike Kelly <mikekelly321@gmail.com>, HTTP Working Group <ietf-http-wg@w3.org>
On 28 February 2012 00:37, Julian Reschke <julian.reschke@gmx.de> wrote: > How exactly is it "not visible"? > > "A PATCH request can be issued in such a way as to be idempotent, [...] "Can be" not "is". You can issue a non-idempotent PATCH. Though you are advised not to, it is possible. Therefore, an intermediary cannot assume that the request is safe to retry. A PUT is by definition idempotent. A PATCH, like POST, is only idempotent under (secret, non-obvious) conditions. --Martin
Received on Tuesday, 28 February 2012 16:30:53 UTC