atom feed151 messages in org.w3.public-lodRe: Is 303 really necessary?
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64 later messages
Subject:Re: Is 303 really necessary?
From:Robert Fuller (robe@deri.org)
Date:Nov 4, 2010 11:38:31 am
List:org.w3.public-lod

Hi,

Feel free anyone to suggest opengraph use 301, 302, 303, 307 (we support them all), since at the moment with a 404 they are missing out on all the benefit of the sindice reasoner ;-)

http://opengraphprotocol.org/schema/latitude

It is common when publishing an ontology to have the url for each property redirect to the rdf schema. It works great.

I would expect that a request for the aforementioned url (with accept header set correctly) would redirect me to (probably) http://opengraphprotocol.org/schema

Which would download nicely with a 200 status code (it doesn't, you need to get the ontology from here http://opengraphprotocol.org/schema/?format=rdf )

Later, when we encounter another opengraph property http://opengraphprotocol.org/schema/longitude We would also hope to get a 303, which would again redirect us to http://opengraphprotocol.org/schema

Of course, we don't want to bring down opengraph server, so we have already cached the schema the first time we downloaded (if it worked) and know not to fetch it again now.

In my experience processing millions of rdf documents daily, the 303 has proven quite useful and very efficient, and I would definitely recommend it's use to opengraph and other publishers of ontologies.

Robert.

On 04/11/10 13:22, Ian Davis wrote:

Hi all,

The subject of this email is the title of a blog post I wrote last night questioning whether we actually need to continue with the 303 redirect approach for Linked Data. My suggestion is that replacing it with a 200 is in practice harmless and that nothing actually breaks on the web. Please take a moment to read it if you are interested.

http://iand.posterous.com/is-303-really-necessary

Cheers,