DialogA11y

Accessibility

Here are some accessibility edge cases scenarios we identified and users should keep in mind while using the Dialog components.

1. NVDA reads dialog information twice
2. Talkback doesn't support dialog name/description
3. Talkback doesn't support alertdialog
4. Whenever including a Menu, Combobox, Dropdown or Popover inside a dialog the property aria-modal should be false otherwise VoiceOver on IOS will not be able to access the popup. This is needed as well for VoiceOver on macOS, otherwise these components are not narrated. Apply aria-modal=false on the DialogSurface slot.
5. DialogSurface by default has aria-describedby="dialog-content-id", which might not be ideal with complex DialogContent, on those scenarios (for example on with form), it is recommended to set aria-describedby={undefined}