Live validation prompts should be presented to users without obtaining focus

When filling up a form with live validation such as the one on http://localhost:8080/xwiki/bin/view/XWiki/Registration , the user should not have to focus the 'error' messages to be informed about their content.

Recommendation:

This status message must be directly detectable by the screen reader and other
assistive technologies without requiring users to focus on this element.
For this purpose the role=status can be added or the aria elements aria-live or aria-
atomic.

Brought in light by the accessibility audit report made by Dataport.