Amazon Video Website Player Accessibility?

macOS & Mac Apps

Hi, all,

It doesn't seem that the Amazon Video web player is even acknowledged by Voiceover. Are there any keystrokes for the player controls or the captions/audio descriptions? My husband would like to use closed captions and I would like to use the audio descriptions when we watch programs. In other Silverlight players, there are keyboard shortcuts, but I can't seem to find a player to focus on with the Amazon video site.

Thanks in advance for pointers.