Video on WordPress.tv: http://wordpress.tv/2017/06/22/rian-rietveld-accessibility-in-the-age-of-the-headless-cms/
Blogpost with all the text and links: http://rianrietveld.com/2017/06/09/wceu17/
WordCamp Europe 2017 in Paris.
28. โข aria-live=โpoliteโ = updates announced if the user is idle
โข aria-live=โassertiveโ = updates announced as soon as possible
aria-live has different behaviours: