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Re: data-* attributes [was: Re: ISSUE-41/ACTION-97 decentralized-extensibility]

From: Tab Atkins Jr. <jackalmage@gmail.com>
Date: Mon, 19 Oct 2009 10:34:10 -0500
Message-ID: <dd0fbad0910190834n25cf13dclb057ab027474c43b@mail.gmail.com>
To: James Graham <jgraham@opera.com>
Cc: Leif Halvard Silli <xn--mlform-iua@xn--mlform-iua.no>, Shelley Powers <shelley.just@gmail.com>, Anne van Kesteren <annevk@opera.com>, Adrian Bateman <adrianba@microsoft.com>, Jonas Sicking <jonas@sicking.cc>, Tony Ross <tross@microsoft.com>, "public-html@w3.org" <public-html@w3.org>
On Mon, Oct 19, 2009 at 10:23 AM, James Graham <jgraham@opera.com> wrote:
> To take a slightly different example, it is OK to have data-marquee that is
> used by a script that the author includes in the page to implement marquee
> effects. But it is not permitted for a user agent to provide its own marquee
> effects based on the presence of a marquee attribute.
> Is the distinction clear now? It is likely that the spec needs clarification
> on this point.

As another example, it's also not okay for, say, a search engine
spider to base behavior off of something in a data-* attribute.  This
is why data-* was not appropriate for embedding RDF, since one of the
purposes of embedding RDF was to make data available to crawlers.

Received on Monday, 19 October 2009 15:35:04 UTC

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