Re: [Doh] Support requirements for Head

Massimiliano Fantuzzi <superfantuz@gmail.com> Sun, 18 March 2018 14:19 UTC

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From: Massimiliano Fantuzzi <superfantuz@gmail.com>
Date: Sun, 18 Mar 2018 15:19:50 +0100
Message-ID: <CABwxwWhjOX1qDDrX01gheDsTxPBTqShTZgbQ71OnF73zX2ej1A@mail.gmail.com>
To: Daniel Stenberg <daniel@haxx.se>
Cc: Stephane Bortzmeyer <bortzmeyer@nic.fr>, =?UTF-8?B?w5NsYWZ1ciBHdcOwbXVuZHNzb24=?= <olafur@cloudflare.com>, doh@ietf.org
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Subject: Re: [Doh] Support requirements for Head
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Either answer with 405 or support it as "cache-primer" helper ?
As Daniel says, many servers drop this method... but in DOH context it may
come helpful, IMHO.

HEAD is there to asses the existence of a resource, why shall we not bring
it along ? (i.e. may be supported but not a must ?)

Best regards,
max

On Sun, Mar 18, 2018 at 2:30 PM, Daniel Stenberg <daniel@haxx.se>; wrote:

> On Sun, 18 Mar 2018, Stephane Bortzmeyer wrote:
>
> My personal opinion is "if you support GET, you MUST support HEAD". Any
>> HTTP advice? (Technically, it's nothing, the vast majority of DoH clients
>> and servers already handle HEAD.)
>>
>
> That is not strictly stated in RFC 7231 and the web is already populated
> with lots of servers that don't respond to HEAD while responding fine to
> GET.
>
> --
>
>  / daniel.haxx.se
>
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*Massimiliano Fantuzzi*
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