- From: Noah Slater <nslater@tumbolia.org>
- Date: Sun, 30 Aug 2009 17:08:29 +0100
- To: Julian Reschke <julian.reschke@gmx.de>
- Cc: Ian Hickson <ian@hixie.ch>, Mark Nottingham <mnot@mnot.net>, Eran Hammer-Lahav <eran@hueniverse.com>, Sam Johnston <samj@samj.net>, HTTP Working Group <ietf-http-wg@w3.org>
On Sun, Aug 30, 2009 at 12:00:51PM +0200, Julian Reschke wrote: > Does Mozilla support the Link header for any relation besides stylesheet Yes, the following get you feed discovery: @rel='alternate' @type='application/atom+xml' @rel='alternate' @type='application/rss+xml' And the Mozilla suite browser natively supports everything from "last", "prev", "next", "first", "up", "copyright", "about", "search", a bunch of other de-facto @rel values, and all the ones found here: http://www.w3.org/TR/html401/types.html#type-links Firefox does not support this natively, but there is a plugin to add it. >> The main advantage of rel="up up up" rather than rel="up3" is that for >> UAs that only need to know that the link is an "up" and don't care >> about how far "up" it goes, the keyword automatically works -- you >> don't have to do rel="up up3". Also, it means that we don't have to >> register an infinite number of keywords for all possible depths. > > Are there UAs that already support "up up" the way you defined it? How > did that extension make it into the spec anyway? I needed to express the "up" relation in my HTML and Atom documents, and I took a look at the HTML5 spec to see what the recommendation was. I wasn't planning on using HTML5, but I figured that it might be a good place to check anyway. After thinking about it for a while, I decided that there was no sufficient reason to use more than a single "up" value. My reasoning is that URIs already provide a mechanism for UAs to determine the spacial position of the current resource in relation to the one specified via a link element. Resource URI: http://example.org/dir-a/dir-b/doc-b Links elements: <link rel="up" href="/"> <link rel="up" href="/dir-a/"> <link rel="up" href="/dir-a/dir-b/"> The hierarchical position of each link can be found by parsing the URI. Best, -- Noah Slater, http://tumbolia.org/nslater
Received on Sunday, 30 August 2009 16:09:21 UTC