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Re: Custom Elements: 'data-' attributes

From: Anne van Kesteren <annevk@annevk.nl>
Date: Thu, 15 May 2014 15:10:25 +0200
Message-ID: <CADnb78iEyGVirKE+SqP1_oWMHYGDBmyzXsieepjOU=pXV9-eOw@mail.gmail.com>
To: Boris Zbarsky <bzbarsky@mit.edu>
Cc: WebApps WG <public-webapps@w3.org>
On Tue, May 13, 2014 at 5:44 PM, Boris Zbarsky <bzbarsky@mit.edu> wrote:
> I slightly worry about the performance implications of this and the number
> of changes to UAs this will require: any place inside a UA that examines
> attribute values (only for global attributes?) would need to consult this
> reservation information, right?

Yes. Though maybe not for styling?

I suspect if we're going to allow genuine subclassing of existing
elements, you would want to potentially override attributes there too.

Received on Thursday, 15 May 2014 13:10:53 UTC

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