HomePod pausing AirPlay source when app is minimized or phone locked
I use AirPlay to cast music from the SoundCloud and Spotify apps to the HomePod, on an iPhone X.
Music begins playing normally, but when the app is minimized by switching to another app via the swipe-up gesture, or when the phone is locked, the stream is immediately paused.
How can I allow the stream to continue playing?
(Note: There's a similar issue of random, intermittent audio pausing, but this is different as the audio pauses immediately upon app minimization or screen locks.)
HomePod