title: how do I keep a mobile browser awake
body: <p>I'm working on a web app that plays through a playlist of mp3 files and I'm running into an issue on mobile browsers.  I'll start playing a song and immediately turn the screen off.  The website will continue to run and play 2-3 songs. After that it stops playing. I have only tested this with chrome on android.  </p>
  
  <p>What can I can do to keep the music playing?    </p>