Bug 19145 - <aside> should have default implicit ARIA semantic of "complementary"
Summary: <aside> should have default implicit ARIA semantic of "complementary"
Alias: None
Product: HTML WG
Classification: Unclassified
Component: HTML5 spec (show other bugs)
Version: unspecified
Hardware: All All
: P2 normal
Target Milestone: ---
Assignee: Silvia Pfeiffer
QA Contact: HTML WG Bugzilla archive list
Keywords: a11y
Depends on:
Reported: 2012-09-30 02:04 UTC by Jason Kiss
Modified: 2012-10-29 13:09 UTC (History)
5 users (show)

See Also:


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Description Jason Kiss 2012-09-30 02:04:08 UTC
The current default implicit ARIA semantic for <aside> is "note". See section Implicit ARIA Semantics [1].

It is proposed that this be changed to "complementary" for the following reasons:

A. The definition of <aside> [2] seems more closely aligned to the definition of
the "complementary" role [3] than it does to the definition of the "note" role [4], particularly with regard to the element's content still being meaningful when separated from the surrounding content. 

B. Firefox/Win and Safari/Mac, the only two browsers currently mapping additional semantics for <aside> to the accessibility APIs, both map it to the "complementary" role, Firefox/Win using an IA2 "xml-roles" object attribute and Safari/Mac an AXSubrole of AXLandmarkComplementary.

C. The HTML to Platform Accessibility APIs Implementation Guide advises that browsers map the <aside> element to the "complementary" role where the accessibility API permits [5].

[1] http://dev.w3.org/html5/spec/wai-aria.html#sec-implicit-aria-semantics
[2] http://dev.w3.org/html5/spec/the-aside-element.html#the-aside-element
[3] http://www.w3.org/WAI/PF/aria/roles#complementary
[4] http://www.w3.org/WAI/PF/aria/roles#note
[5] http://dvcs.w3.org/hg/html-api-map/raw-file/tip/Overview.html#el-8
Comment 1 Silvia Pfeiffer 2012-10-29 11:14:45 UTC
I'd be happy to change this. What do other a11y experts say about this?
Comment 2 steve faulkner 2012-10-29 11:21:46 UTC
(In reply to comment #1)
its already been done 
Comment 3 Silvia Pfeiffer 2012-10-29 13:09:52 UTC
EDITOR'S RESPONSE: This is an Editor's Response to your comment. If
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Status: Accepted
Change Description: No Change
Rationale: Already fixed (thanks Steve!)