YouTube API iFrame - Keep YouTube video iFrame playing while phone locked

I would like to know if it is possible to keep a YouTube API iFramme video playing while my phone is locked.I mean, I'm using the YouTube API iFrame to embed a YouTube video on my website. But when I lock my phone, the video stops playing. However, when I lock my computer, the video continues playing.How can I "fake" a "desktop iFrame" or how can I force, in JS, the video to play?

Thanks!

EDIT: I tried something like this:

function onPlayerStateChange(event) {    player.playVideo()}

It works only on some phones, but not for all...

It is not a problem if I can't stop playing the video after: it's for streaming, so I just have to mute the video if I want to "stop" it.