ARIA and HTML document question about implicit headings

Hi,
I noticed recently that according to the ARIA and HTML mapping tables, the use of aria-level is said to not be allowed on H1 through H6 elements, even though these implicitly map to role="heading".

Since supporting attributes like aria-pressed and aria-haspopup are accepted on other implicit elements like role="button", amongst other implicit role and attribute combinations, why is this one different?

Bryan Garaventa
Accessibility Fellow
Level Access, Inc.
Bryan.Garaventa@LevelAccess.com
415.624.2709 (o)
www.LevelAccess.com

Received on Monday, 14 August 2017 16:49:40 UTC