Re: [link-relations] NEW APP DATA

Ian Hickson <ian@hixie.ch> Mon, 09 August 2010 08:42 UTC

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Date: Mon, 09 Aug 2010 08:43:25 +0000
From: Ian Hickson <ian@hixie.ch>
To: Julian Reschke <julian.reschke@gmx.de>
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Subject: Re: [link-relations] NEW APP DATA
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On Mon, 9 Aug 2010, Julian Reschke wrote:
> On 09.08.2010 06:30, Ian Hickson wrote:
> > 
> >      o Application Name: HTML
> >      o Description: Effect on a and area elements
> >      o Default Value: Not allowed
> >      o Notes: The following values should have "Hyperlink" for this
> >          field: alternate, appendix, bookmark, chapter, contents,
> >          copyright, first, glossary, help, index, first, last, license,
> >          next, prev, previous, section, start, subsection, up.
> >      o Specification:
> > http://www.whatwg.org/specs/web-apps/current-work/complete.html#iana-registry
> > 
> >      o Application Name: HTML
> >      o Description: Effect on link elements
> >      o Default Value: Not allowed
> >      o Notes: The following values should have "Hyperlink" for this
> >          field: alternate, appendix, chapter, contents, copyright,
> >          first, glossary, help, index, first, last, license, next,
> >          prev, previous, section, start, subsection, up. The following
> >          values should have "External Resource Link" for this field:
> >          stylesheet.
> >      o Specification:
> > http://www.whatwg.org/specs/web-apps/current-work/complete.html#iana-registry
> 
> could you please have a look at my feedback from July 15:
> 
> <http://www.ietf.org/mail-archive/web/link-relations/current/msg00002.html>
> 
> and try to address it?

My apologies, I assumed that the answers to those questions were 
self-evident in the edits made to the spec recently.

The purpose of those flags is to define conformance for HTML.

Relations can be updated to define how they work with HTML by using the 
process described in the Web Linking spec.

An example of a relation that we would not want to allow is rel=stylesheet 
on <area>, which we would want to disallow because it has no effect and 
is therefore likely an authoring mistake. Similarly, we wouldn't want 
rel=noreferrer to be allowed on <link> because it's not a link relation, 
it's a link annotation, and <link> doesn't create hyperlinks without a 
relation that creates one. Each keyword would have to be taken on a case- 
by-case basis.

Regarding the final parenthetical, I believe the templates fit what is 
described in the Web Linking spec.

HTH,
-- 
Ian Hickson               U+1047E                )\._.,--....,'``.    fL
http://ln.hixie.ch/       U+263A                /,   _.. \   _\  ;`._ ,.
Things that are impossible just take longer.   `._.-(,_..'--(,_..'`-.;.'