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Re: 3rd Party Content - Embeded Video Player

From: Loretta Guarino Reid <lorettaguarino@google.com>
Date: Thu, 29 Sep 2011 18:20:13 -0700
Message-ID: <CAHu5OWZMoAaraVV5bWjD51hmMOaRM5q2rwnbTZ7e4huGNSSXBw@mail.gmail.com>
To: makoto.ueki@gmail.com
Cc: public-comments-wcag20@w3.org
On Fri, Oct 15, 2010 at 12:12 AM,  <noreply@w3.org> wrote:
> Name: Makoto Ueki
> Email: makoto.ueki@gmail.com
> Affiliation: Infoaxia, Inc. (WAIC)
> Document: W2
> Item Number: Statement of partial conformance - third party content
> Part of Item:
> Comment Type: general comment
> Summary of Issue: 3rd Party Content - Embeded Video Player
> Comment (Including rationale for any proposed change):
> This is a question from WAIC(Web Accessibility Infrastructure Committee in Japan) which is a successor to JIS working group. In order to harmonize with WCAG 2.0, we need an answer from WCAG working group.
> A video player is embedded in a web page. The author used the third party video player to present video-audio content(synchronized media).
> In this case, are the UI components of the video player also applied to "Statement of Partial Conformance - Third Party Content"? The UI components include "Play/Pause", "Stop" buttons, volume controls and so on.
> - Video-Audio content is under the author's control.
> - But UI components are "uncontrolled content" which is not content that is under the author's control.
> - UI components may be updated without notice. After the update, even if UI components won't meet SC anymore, it is not under the author's control.
> One of the specific examples for this situation is YouTube player APIs. There are many web pages which embed video-audio content by using Youtube Player. UI components of Youtube Player are not under author's control.
> In my understanding, "Statement of Partial Conformance - Third Party Content" is only applied when it is not possible to know at the time of original posting what the uncontrolled content of the pages will be. So, in the case of Youtube palyer, it is not applicable. But I'm not sure...
> We've got many questions on this point. In order to keep international harmonization between WCAG and JIS, we have to confirm WCAG's rationale.
> Proposed Change:
> Quick answer would also be helpful. Thank you very much for your cooperation.

Response from the Working Group
We agree that a video player that is inserted into the page by a third
party is not controlled by the author. In the section on partial
conformance we have added:
"Another example would be a page, such as a portal or news site,
composed of content aggregated from multiple contributors, or sites
that automatically insert content from other sources over time, such
as when advertisements are inserted dynamically.  <add>This could
include objects housing this content, (i.e. a video player) that are
controlled and maintained by the third party. </add>

Loretta Guarino Reid, WCAG WG Co-Chair
Gregg Vanderheiden, WCAG WG Co-Chair
Michael Cooper, WCAG WG Staff Contact

On behalf of the WCAG Working Group
Received on Friday, 30 September 2011 01:20:39 UTC

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