Run addons with --privileged

Hi,

I have created a docker file to run a kiosk browser This shows the hassio and works fine.
Installing also works, but when starting no screen is shown.
When I then run the installed image with --privileged, the screen comes up and works fine.

So my question is, is there a way to run the docker images with a --privileged flag?
I know the NET_ADMIN, but that does not work.