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Re: Question about proxies forwarding HTTP/1.0 responses

From: Alex Rousskov <rousskov@measurement-factory.com>
Date: Thu, 27 May 2004 11:18:03 -0600 (MDT)
To: patrick mcmanus <mcmanus@ducksong.com>
Cc: Jamie Lokier <jamie@shareable.org>, HTTP working group <ietf-http-wg@w3.org>
Message-ID: <Pine.BSF.4.58.0405271110580.96416@measurement-factory.com>

On Thu, 27 May 2004, patrick mcmanus wrote:

> On Thu, 2004-05-27 at 12:49, Alex Rousskov wrote:
> > On Thu, 27 May 2004, patrick mcmanus wrote:
> >
> > > > Does announcing HTTP/1.1 actually buy you anything at all?
>
> > > It can get you chunked responses..
> >
> > ... and can messages with HTTP/1.0 version strings and TE: chunked.
>
> HTTP/1.0 with TE: chunked cannot safely cause a chunked response. That
> combination is much more likely to be a HTTP/1.0 proxy that propogated a
> TE header it didn't know was hop-to-hop. There is a real chance that
> proxy won't be able to interpret the response correctly.

Oof. I should have been more careful when writing HTTP header names.
Sorry. What I meant to say is that it is safe to respond with chunked
HTTP/1.0 response to an HTTP/1.1 request:

	GET / HTTP/1.1
	...

	HTTP/1.0 200 OK
	Transfer-Encoding: chunked
	...

You are absolutely right that TE request-header has nothing to do with
the ability to use chunking with HTTP/1.0 messages.

Alex.
Received on Thursday, 27 May 2004 13:18:09 GMT

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