Aria-atomic for live regions (aria-atomic)

Dynamic content include a valid aria-atomic attribute if needed.


Aria-atomic on non-live region:

In this example the element has aria-atomic="true" but is not a live region (no aria-live and no live-region role like status or alert).


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Note: Possible to automatically test/detect. Flag any element with aria-atomic when neither the element nor any ancestor is a live region (no aria-live and no live-region role such as status, alert, log, marquee, or timer).

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