- From: Sam Ruby <rubys@intertwingly.net>
- Date: Mon, 13 Aug 2012 23:04:20 -0400
- To: John Foliot <john@foliot.ca>
- CC: public-html@w3.org, 'HTML Accessibility Task Force' <public-html-a11y@w3.org>
Duly recorded: http://dev.w3.org/html5/status/formal-objection-status.html#ISSUE-204 - Sam Ruby On 08/13/2012 10:28 PM, John Foliot wrote: > Sam Ruby wrote: >> >> * Assertion of "harmful behaviors" is also not sufficiently >> supported >> by evidence. In particular, it makes a claim that has previously >> been disputed, and without a single example of such markup. > > It is impossible to demonstrate harmful behaviors in a technology that has > yet to surface - this is a ludicrous statement. > > Placing a <a href>Link</a> inside an @hidden container MUST still take tab > focus for a non-sighted user and their Assistive Technology to interact with > it, yet at the same time hides that focus from the sighted user: this is > simple logic. Proving the harm of this is currently impossible due to lack > of implementation anywhere: conversely however no one has been able to prove > that this is NOT harmful. > > Allowing tab-focusable content to reside inside of a container that is > specifically hidden to any other user, including a sighted, key-board only > user, is harmful because that sighted user will lose track of their tab > focus, with no other means of knowing where their cursor is. > > This is a direct contravention of a WCAG 2 AA Requirement: > > "2.4.7 Focus Visible: Any keyboard operable user interface has a > mode of operation where the keyboard focus indicator is visible." > http://www.w3.org/TR/2008/REC-WCAG20-20081211/#navigation-mechanisms-focus-v > isible > > Therefore, implementation of this Change Proposal is a Direct and Willful > Violation of the existing WCAG Specification, and the basis of My Formal > Objection. I do not believe that the HTML5 WG should be violating such an > important W3C Recommendation (one which countless countries and industries > have based their entire on-line accessibility requirements - whether > policies or legislation - upon). > > > John Foliot >
Received on Tuesday, 14 August 2012 03:04:50 UTC