Play audio on page load

[404ryannotfound]

Hi all,
Great project, I have a Pi loading my test web kiosk, runs like a treat. My index page loads audio in my index file like:

<audio id="ambient-audio" autoplay loop>
  <source src="cave-drip.mp3" type="audio/mpeg">
  Your browser does not support the audio element.
</audio>

I need to add a command for the audio to play to Chromium similar to:
chromium-browser --kiosk --autoplay-policy=no-user-gesture-required index.html

Which file/directory can I add this to, so i don't have to modify
home?pi/scripts/start_chromium_browser

Thanks in advance!

[guysoft]

This one:
https://github.com/guysoft/FullPageOS/blob/devel/src/modules/fullpageos/filesystem/opt/custompios/scripts/start_chromium_browser

in the os its at:

/opt/custompios/scripts/start_chromium_browser

On stable its at:

/home/pu/scripts/start_chromium_browser