Ensure FS workaround always resets its background
Ensure FS workaround always resets its background

In cases where the DOMContentLoaded event is not fired until very late,
the fullscreen workaround div may not set its background appropriately
to its final value. Accellerate this process and ensure that the
background is always reset after the DOMContentLoaded event fires.

abstiles/deluminate,abstiles/deluminate,abstiles/deluminate