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Re: New content negotiation draft available

From: Ted Hardie <hardie@orval.arc.nasa.gov>
Date: Fri, 16 Jan 1998 11:24:42 -0800 (PST)
Message-Id: <199801161924.TAA21619@orval.arc.nasa.gov>
To: koen@win.tue.nl, stemm@cs.berkeley.edu
Cc: http-wg@cuckoo.hpl.hp.com, ietf-conneg@imc.org
Mark,

On at least one of the revisions of the "Alternates"draft,
the full URL syntax was made mandatory.  I believe that
that syntax continues to be the consensus of the conneg list.
				regards,
					Ted Hardie
					NASA NIC
					
> 2. The list of alternates in an "Alternates:" header currently uses the
> URI of documents for identification. It seems that there might be some
> advantages to using the URL of the document instead, e.g. the example in
> Section 4.3:
> 
> >Alternates: {"paper.1" 0.9 {type text/html} {language en}},
> >                 {"paper.2" 0.7 {type text/html} {language fr}},
> >                 {"paper.3" 1.0 {type application/postscript}
> 
> becomes:
> 
> >Alternates: {"http://x.org/paper.1" 0.9 {type text/html} {language en}},
> >                 {"http://x.org/paper.2" 0.7 {type text/html} {language
> fr}},
> >                 {"http://x.org/paper.3" 1.0 {type
> application/postscript}
> 
> Using URLs instead of URIs has the significant advantage that it provides
> a simple mechanism for pointing clients to mirror locations that replicate
> the same content. For example, the Internet Movie Database could have an
> "Alternates:" header like:
> 
> Alternates: {"http://www.imdb.com/" 1.0 {type text/html} {language en}},
>                  {"http://uk.imdb.com/" 0.7 {type text/html} {language
> en}},
>                  {"http://italy.imdb.com/" 0.7 {type text/html} {language
> it}}
> 
>
Received on Friday, 16 January 1998 11:29:10 EST

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