Android Chrome play AOD in background screen off

How to playing AOD in Android Chrome in screen off or using other program

<audio  preload="auto" style="width:100%;" autoplay="autoplay" controls="controls" ">
        <source src="http://mydomain/audio/song.m4a.m3u8"   />

        <p>Your browser does not support HTML5 audio.</p>
    </audio>