Re: New Version Notification for draft-kazuho-early-hints-status-code-00.txt

Werner Baumann <werner.baumann@onlinehome.de> Thu, 03 November 2016 10:47 UTC

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Date: Thu, 3 Nov 2016 11:42:50 +0100
From: Werner Baumann <werner.baumann@onlinehome.de>
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Subject: Re: New Version Notification for draft-kazuho-early-hints-status-code-00.txt
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Am Thu, 3 Nov 2016 09:08:02 +0000
schrieb Cory Benfield <cory@lukasa.co.uk>uk>:

> 
> > On 2 Nov 2016, at 22:50, Roy T. Fielding <fielding@gbiv.com> wrote:
> > I don't care how widely they are deployed.  Not a single client on
> > your list existed when 1xx was invented.
> 
> To look at your age argument for a moment, yes they did. Python’s
> httplib was on my list, and I just downloaded Python 1.1, which was
> released in October 1994: httplib is present in that distribution as
> a HTTP/1.0 client implementation.
> 

From RFC 7231:

> 6.2 Informational 1xx
> ... Since HTTP/1.0 did not define any 1xx status codes, a server MUST
> NOT send a 1xx response to an HTTP/1.0 client.

Question:
For what kind of HTTP clients are these non conforming libraries used?
To what kind of HTTP servers do they connect? Is any of these servers
expected to start sending 103 responses? I would expect that at least
none of that IoT devices will ever have to deal with 103.