After updating I noticed that Squeezebox cover art is not shown anymore in my custom lovelace page. A different take on designing a Lovelace UI
All is fine in the mini media player I also use (see below), but when fetching the entity_picture from the media player things go wrong.
I use my chromecast devices as squeezebox players. And I grab the entity picture from the cast media player, not the squeezebox media player. When I look in the dev tools - states I see that the entity_picture attribute lists the url wrongly:
entity_picture: //<local squeezebox server ip>/music/<music id>/cover.jpg
Where it should show:
entity_picture: http://<local squeezebox server ip>/music/<music id>/cover.jpg
I assume that the image is shown correctly in the mini media player, since that will grab it from the squeezebox media player and not the cast media player.