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Re: Issues-list item "QZERO"

From: Roy T. Fielding <fielding@kiwi.ICS.UCI.EDU>
Date: Tue, 22 Apr 1997 13:10:23 -0700
To: Koen Holtman <koen@win.tue.nl>
Cc: jg@w3.org, http-wg@cuckoo.hpl.hp.com
Message-Id: <9704221310.aa22906@paris.ics.uci.edu>
From the Memphis minutes:
>
> -- Koen Holtman
>    will draft a clarification that a qvalue of 0.0 means "Don't send
>    me this."
>
>The clarification (taken from the slide I showed in the Memphis
>evening session) is one new sentence in section 3.9 of the 1.1 spec.
>The new sentence is between ** **.
>
> 3.9 Quality Values
>
>   HTTP content negotiation (section 12) uses short "floating point"
>   numbers to indicate the relative importance ("weight") of various
>   negotiable parameters. A weight is normalized to a real number in the
>   range 0 through 1, where 0 is the minimum and 1 the maximum value.
>   **If a parameter has a quality value of 0, then content with this
>   parameter is `not acceptable' for the client.**
>   HTTP/1.1 applications MUST NOT generate more than three digits after
>   the decimal point. User configuration of these values SHOULD also be
>   limited in this fashion.

That change does not belong in that section -- it belongs in the sections
on the Accept* header fields.  Servers send qvalues too.

....Roy
Received on Tuesday, 22 April 1997 13:20:37 EDT

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