[webkit-dev] New feature announcement - Implement HTML5 Microdata in WebKit

James Robinson jamesr at google.com
Thu Sep 22 14:42:35 PDT 2011

On Thu, Sep 22, 2011 at 2:32 PM, Charles Pritchard <chuck at jumis.com> wrote:

> On 9/22/2011 2:13 PM, Ian Hickson wrote:
>> On Fri, 23 Sep 2011, Dean Jackson wrote:
>>> However, isn't prefixing designed to avoid incompatibilities in spec
>>> changes, not incompatibilities between implementations? Ensuring no
>>> conflicts in implementations doesn't matter too much if the spec
>>> changes.
>> It's designed to ensure that authors can reliably use a name and expect to
>> get the same result in any UA that supports that name.
>> I'm not going to change the spec in a way that conflicts with that -- if
>> the spec has to change, it'll change either in a compatible way (e.g. to
>> match what was actually implemented), or in a way that doesn't conflict
>> (e.g. by changing the name in the spec).
>>  Note I'm not talking about Microdata in particular. I don't even know
>>> what that spec is :) I'm just talking about the general approach. If the
>>> world can guarantee that this spec will never change, then I guess your
>>> technique works.
>>> FWIW, there is an in-between approach, which is the one used by WebGL.
>>> It defines a prefix that all implementations share.
>>> canvas.getContext("**experimental-webgl");
>> That'll just result in that name becoming the standard.
> I would like "some kind" of fast track method for these kind of issues.
> Something like a "Request for dropping prefix" RfDP protocol would be
> super.

Please post this feedback to some thread where it's relevant, not on a
WebKit development mailing list discussion about a specific feature.

- James

> "RfDP: Microdata". First the spec editor would have to vouch for it, then,
> if Moz, MS, Opera, Apple and Google reps can give a nod within a few weeks,
> we've got something.
> I'd really like to avoid repeats of  the CSS "-vnd-transform" baggage, when
> possible.
> WebKit went back and forth on BlobBuilder. Now it's at:
> "WebKitBlobBuilder". That was not so fun.
> That's another situation I'd like to avoid.
> For this particular method, the microdata section, I'm happy enough hearing
> that the spec editor will vouch for it.
> If that's the precedent, I'll take it. I'd like to learn how we can build
> on that precedent.
> Reps from the major vendors have been quite responsive this year. I know
> they can't "commit" to supporting
> an API in a short time frame (such as the File API), but they have been
> great about voicing issues.
> -Charles
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