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Re: Color content negotiation

From: Larry Masinter <masinter@parc.xerox.com>
Date: Wed, 6 Sep 1995 18:09:28 PDT
To: brian@organic.com
Cc: koen@win.tue.nl, fielding@beach.w3.org, http-wg%cuckoo.hpl.hp.com@hplb.hpl.hp.com, koen@win.tue.nl
Message-Id: <95Sep6.180933pdt.2763@golden.parc.xerox.com>
The number of attributes a server *could* send for a particular
document is nearly infinite; images could be selected on size and
pixel depth; audio streams on compression methods, data rate or bits
per sample; postscript files on version, use of color, etc.

406 responses might be able to characterize these when the service
doesn't perform any conversion, but 'accept' style negotiation works
better in other circumstances.

Let me suggest again "accept-parameter: <parameter><rel><value>"
where <parameter> is a parameter to a number of media types (e.g.,
charset), <rel> is a relation operator (e.g., =), and <value> is a
value specifier consistent with <rel>.

This will apply 'to all accepted media types for which the parameter
applies', and the q value operates by modifying the q of the original
media type. (If revisedq = f(mediaq, parameterq), I'm not sure what f
should be, but I think 'product', e.g., revisedq=mediaq * parameterq.
Received on Wednesday, 6 September 1995 18:15:56 UTC

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