Re: Clarification on use of Content-Location header

On May 14, 2010, at 1:09 PM, Henrik Nordström wrote:

> fre 2010-05-14 klockan 12:36 -0700 skrev Roy T. Fielding:
>> All schemes are dereferenceable, including urn, info, and tag.
> Are they?

Yes.  Any scheme can be proxied through HTTP, even when it
might be unwise to do so.

> Quote from the tag scheme specification RFC4151:
>        There is no authoritative resolution mechanism for tags.  Unlike
>        most other URIs, tags can only be used as identifiers, and are
>        not designed to support resolution.  If authoritative resolution
>        is a desired feature, a different URI scheme should be used.
> Some of the  URN name spaces have similar issues.

That doesn't prevent anyone from introducing a resolution, deploying
it, and then configuring their web tools to dereference it.

There is a long history of URN-like specifications living in some
fantasy land that has no correspondence with Web technology.


Received on Friday, 14 May 2010 21:35:00 UTC