@Darkmx-6 i don’t know where mmstart.sh came from… it is not part of the base MagicMirror solution.
the MagicMirror start script is ~/MagicMirror/installers/mm.sh
it does not run serveronly… it assumes you are running the mirror user experience ON the same machine.
i don’t know if EasyBack works on the remote client of serveronly… THAT browser would have to enable autoplay… our fix was for the electron browser running ON the same machine
edit:
ok, i see what you are doing… using chromium for the browser for some reason…
so u have to disable the autoplay blocker there , from
https://developers.google.com/web/updates/2017/09/autoplay-policy-changes
You can decide to disable entirely the autoplay policy by setting the
Chrome flag "Autoplay Policy" to "No user gesture is required" at chrome://flags/#autoplay-policy.
This allows you to test your website as if user were strongly engaged with your site and playback autoplay would be always allowed.