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Re: RE-VERSION discussion at Munich....

From: Foteos Macrides <MACRIDES@sci.wfbr.edu>
Date: Tue, 18 Nov 1997 13:06:24 -0500 (EST)
To: frystyk@w3.org
Cc: http-wg%cuckoo.hpl.hp.com@hplb.hpl.hp.com
Message-Id: <01IQ5LHFOCEY00FXGD@SCI.WFBR.EDU>
Henrik Frystyk Nielsen <frystyk@w3.org> wrote:
>At 15:03 11/17/97 -0800, Jim Gettys wrote:
>
>>New text:
>>
>>Due to interoperability problems with HTTP/1.0 proxies discovered since 
>>the publication of RFC 2068, caching proxies MUST, gateways MAY, and tunnels 
>>MUST NOT upgrade the request to the highest version they support. The proxy 
>>or gateway's response to a request MUST be in the same major version as 
>>the request. 
>
>We can't say that if the server that the proxy speaks to is buggy and
>doesn't understand HTTP/1.1. It may have to speak HTTP/1.0 in some
>situations. It also doesn't make sense to say that gateways MAY upgrade as
>they are gateways into other protocols.
>
>I can't see what we get out of this that is not already captured in RFC
>2145, section 2.3:
>[...]

	I also don't know if something new was raised in Munich,
but as far as discussions on this list are concerned, I similarly
feel that Section 2.3 covers the issues quite well and would be
difficult to improve.  One thing that's missing is an explicit
reference to the Via header for the case in which proxies are
interposed between the browser and origin server, so that scripts
can't rely on the SERVER_PROTOCOL variable, but should also
examine the HTTP_VIA variable (or their server-side scripting
equivalents) to assess the browser's version. I'm not the
appropriate one to attempt a chunk of text about that, but if
someone who is, did, I suspect many implementors and providers
would be appreciative.

				Fote

=========================================================================
 Foteos Macrides            Worcester Foundation for Biomedical Research
 MACRIDES@SCI.WFBR.EDU         222 Maple Avenue, Shrewsbury, MA 01545
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Received on Tuesday, 18 November 1997 10:10:55 EST

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