---

rm -f /tmp/.X99-lock
apt-get install -y dbus-x11
Xvfb :99 -screen 0 1280x800x24 &
export DISPLAY=:99
firefox --no-remote --no-sandbox &
x11vnc -display :99 -forever -nopw -bg
websockify --web=/usr/share/novnc/ 8080 localhost:5900 &