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current public wai-aria working draft states: Within any document or application, the author SHOULD mark no more than one element with the main role. [http://www.w3.org/TR/wai-aria/roles#main] requested modification to HTML5: add this conformance statement in the appropriate section of the spec [http://dev.w3.org/html5/spec/embedded-content-0.html#annotations-for-assistive-technology-products-aria].
EDITOR'S RESPONSE: This is an Editor's Response to your comment. If you are satisfied with this response, please change the state of this bug to CLOSED. If you have additional information and would like the editor to reconsider, please reopen this bug. If you would like to escalate the issue to the full HTML Working Group, please add the TrackerRequest keyword to this bug, and suggest title and text for the tracker issue; or you may create a tracker issue yourself, if you are able to do so. For more details, see this document: http://dev.w3.org/html5/decision-policy/decision-policy.html Status: Accepted Change Description: see diff given below Rationale: Concurred with reporter's comments.
Checked in as WHATWG revision r4675. Check-in comment: Mention that ARIA restricts 'main' to one per page. http://html5.org/tools/web-apps-tracker?from=4674&to=4675
Per the proposal at http://lists.w3.org/Archives/Public/public-html-a11y/2010Jan/0245.html, the HTML A11Y TF does not plan to formally work on this issue at this time. This does not mean the TF has no interest in it, but does not have immediate plans to work on it. The TF may review the issue in the future.