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HTML5 CR "at risk" features

From: Paul Cotton <Paul.Cotton@microsoft.com>
Date: Thu, 10 Apr 2014 13:47:28 +0000
To: public-html <public-html@w3.org>
Message-ID: <d909e808896b48c38569fbbac7c7af1b@BL2PR03MB418.namprd03.prod.outlook.com>
The HTML WG F2F meeting reviewed the HTML 5.0  CR [1] "at risk" features in preparation of publishing an HTML 5.0 heartbeat publication and eventually a Last Call with some material removed from the HTML 5.0 specification.  This email is an attempt to summarize the recommendations of the F2F meeting.   The definitive description of the discussions and recommendations is in the F2F minutes [2-3].

Bug 24812 was previously opened to cover the CR "at risk" features which were identified in the original HTML5 CR publication [1]:
This bug will eventually be updated with the recommendations of the meeting so that we have a definitive record of the results of the discussions and so that HTML WG members not at the F2F meeting can register their support or dissent on the recommended removals.

First I will provide a summary of the HTML5 CR [1] "at risk" features and how the F2F meeting dealt with them.  Note that the features that are removed from HTML 5.0 will be retained in HTML 5.1.

HTML5 CR specification

"The following features are at risk and may be removed due to lack of implementation.

  *   Application Cache<http://www.w3.org/TR/html5/browsers.html#appcache> - Do not remove
  *   <dialog><http://www.w3.org/TR/html5/interactive-elements.html#the-dialog-element> - Remove
  *   <details><http://www.w3.org/TR/html5/interactive-elements.html#the-details-element> and <summary><http://www.w3.org/TR/html5/interactive-elements.html#the-summary-element> - Remove
  *   <input type=color><http://www.w3.org/TR/html5/forms.html#color-state-(type=color)> - Do not remove
  *   <input type=datetime><http://www.w3.org/TR/html5/forms.html#date-and-time-state-(type=datetime)>, <input type=month><http://www.w3.org/TR/html5/forms.html#month-state-(type=month)>, <input type=week><http://www.w3.org/TR/html5/forms.html#week-state-(type=week)>, <input type=time><http://www.w3.org/TR/html5/forms.html#time-state-(type=time)>, <input type=datetime-local><http://www.w3.org/TR/html5/forms.html#local-date-and-time-state-(type=datetime-local)>  - Remove except for <input type=time>
  *   <output><http://www.w3.org/TR/html5/forms.html#the-output-element> - Do not remove
  *   <style scoped><http://www.w3.org/TR/html5/document-metadata.html#attr-style-scoped> - Remove
  *   <iframe seamless><http://www.w3.org/TR/html5/embedded-content-0.html#attr-iframe-seamless> - Remove
  *   Custom scheme and content handlers (registerProtocolHandler and registerContentHandler)<http://www.w3.org/TR/html5/webappapis.html#custom-handlers> - Do not remove (remove only isContentHandlerRegistered, isProtocolHandlerRegistered)
  *   Outline algorithm<http://www.w3.org/TR/html5/sections.html#outlines> - Do not remove
  *   UA mechanism for navigating to resources linked to in cite=""<http://www.w3.org/TR/html5/rendering.html#links,-forms,-and-navigation>, see Bug 18915<https://www.w3.org/Bugs/Public/show_bug.cgi?id=18915> for more. - Remove
Second I will provide a modified list of the material that Robin proposed for items to be removed as discussed by the HTML WG F2F meeting:
Features to remove in LC

  *   <details>/<summary> - From CR "at risk" features
  *   <dialog> - From CR "at risk" features
  *    :dir(), :valid, :invalid pseudoclass - Discussed at F2F meeting
  *   <iframe seamless> - From CR "at risk" features
  *   isContentHandlerRegistered, isProtocolHandlerRegistered - From CR "at risk" features
  *   input types datetime, datetime-local, week, month, time - From CR "at risk" features
  *   reportValidity - Discussed at F2F meeting
  *   <style scoped> - From CR "at risk" features
  *   XMLDocument.load - Discussed at F2F meeting (The Editors are considering if this should remain in HTML 5.1)
Features at risk in LC

  *   DataCue - Discussed at F2F meeting
  *    :valid, :invalid (need to review http://www.w3c-test.org/html/semantics/selectors/pseudo-classes/valid-invalid.html) - Discussed at F2F meeting
  *   New ruby model - Discussed at F2F meeting
  *   HTMLMediaElement.addTextTrack - Discussed at F2F meeting
  *   input type time - Discussed at F2F meeting

[1] http://www.w3.org/TR/2014/CR-html5-20140204/
[2] http://www.w3.org/2014/04/08-html-wg-minutes.html
[3] http://www.w3.org/2014/04/09-html-wg-minutes.html

Paul Cotton, Microsoft Canada
17 Eleanor Drive, Ottawa, Ontario K2E 6A3
Tel: (425) 705-9596 Fax: (425) 936-7329
Received on Thursday, 10 April 2014 13:47:59 UTC

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