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Re[4]: AW: Content negotiation flamewar (was: Re: "Hash URIs" and content negotiation)

From: Max Voelkel <voelkel@fzi.de>
Date: Tue, 14 Nov 2006 15:03:28 +0100
Message-ID: <409655672.20061114150328@fzi.de>
To: Semantic Web <semantic-web@w3.org>

> [...]
> Depending on what we asked for, #Bob could be a part of an HTML  
> document, or #Bob could be something that according to authoritative  
> RDF statements is a person.

not  really  'part of an HTML document', the fragment id is much vaguer defined.
In the spec [1] we only find

"The retrieved resource may be handled by the user agent in several ways: by
opening a new HTML document in the same user agent window, opening a new HTML
document in a different window, starting a new program to handle the resource,
etc. Since the A element has content (text, images, etc.), user agents may
render this content in such a way as to indicate the presence of a link (e.g.,
by underlining the content).
When the name or id attributes of the A element are set, the element defines an
anchor that may be the destination of other links."

"Note. User agents should be able to find anchors created by empty
A elements, but some fail to do so. For example, some user agents may not find
the "empty-anchor" in the following HTML fragment:"

"Anchor  names  should  be  restricted  to  ASCII characters. Please consult the
appendix for more information about non-ASCII characters in URI attribute values."

> If we answer 303 if asked for HTML, then the server essentially says,
> "Sorry, I can't give you an HTML representation of http://example.com/ 
> resources (because then you could wrongly conclude that #Bob is a  
> part of an HTML document), but over there is another resource that  
> might be relevant to your request."
Hmm those 3xx status code are clearly between 200 OK and 400/500 problem.


[1] http://www.w3.org/TR/html401/struct/links.html#h-12.1

Kind Regards,
Max
--
Max Völkel (http://Xam.de)
Forschungszentrum Informatik (fzi.de)
job: +49 721 9654-854 | mobil: +49 171 8359678
Received on Tuesday, 14 November 2006 14:03:51 GMT

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