As a disabled user, I can use Media Viewer, even in limited form.
Aim to support universal accessibility guidelines, to serve the needs of people with various disabilities (motor skills, vision, hearing, cognitive, etc.).
We may not be able to support all these use cases, but should at least disable Media Viewer in these cases -- and display a message explaining why it's not available.
About Media Viewer
Read more on MediaWiki product page .
#8 Media Viewer Front-End