Audio stream stops playing when locking the screen in the webclip

We have a radio stream playing on the website. If I turn on the radio in the browser and lock the screen, the radio continues to play.

When I create a webclip in fullscreen mode, start the radio there and lock the screen, the radio stops playing.

Does anyone have an idea how to keep audio playing on the lock screen inside the webclip?

Audio stream stops playing when locking the screen in the webclip
 
 
Q