I’m having the same issue. Using - muted=1&autoplay=1&loop=1&badge=0&autopause=0&background=1&
background=1 works in an iframe embed across chrome, firefox, and opera, but safari just gives a black screen and I cannot even hit play or click anywhere on the video (flashes a preview image when loading, then turns black). When I remove background=1 it works fine on safari but then I still get the “unmute” on mobile…