- From: Willy Tarreau <w@1wt.eu>
- Date: Wed, 13 Feb 2019 17:33:17 +0100
- To: Michael Sweet <msweet@apple.com>
- Cc: Mark Nottingham <mnot@mnot.net>, HTTP Working Group <ietf-http-wg@w3.org>
Hi Mike,
On Wed, Feb 13, 2019 at 10:05:03AM -0500, Michael Sweet wrote:
> Mark,
>
> HTTP Upgrade is used by IPP/1.1 [STD92] and IPP/2.0 [PWG Standard 5100.12]
> for opportunistic TLS and has been supported and used by CUPS for about 20
> years. I would NOT be in favor of marking it historic.
It's also used by Websocket and even h1->h2 upgrade as well.
However I think it is completely covered by RFC7230 #6.7 :
https://tools.ietf.org/html/rfc7230#section-6.7
Regards,
Willy
Received on Wednesday, 13 February 2019 16:33:50 UTC