[qgis-qwc2] How to enable backgrounds in printouts of demo-app?

[Roman Meier]

Hi folks,

I'm still running the demo-app and I was wondering about the fact that
none of my printouts is showing any of the chosen backgrounds available
using the button at the bottom of the gui.

It's only when I choose a background layer from within Layers & Legend
that it shows on the printout, which is not really what I'm looking for.

Is this just a configuration issue? What am I missing here? WYSIWYG is
rather important for me and I wish the user gets what he actually sees in
the gui. Looking at productive implementations like map.geo.gl.ch, this
can work well.

There was a discussion in here before in "Print plugin – printing of
background layers" a while back. Unfortunately I'm still not getting it.

Is there a way I can enable printout of background layers in the demo
version? How?

Kind regards,
Roman