[qgis-qwc2] Printing in QWC 2 demo app

[Roman Meier]

Hi folks,

I'm using a local installation of the QWC 2 demo app.

I haven't set up a local QGIS server yet and I rely exclusively on the
online geodata that the demo app is using, e.g. data from Wolfburg,
OpenStreetMap, etc.

I was trying to use the print feature always getting the "Print failed"
message.

What are the steps to make printing work in the demo app?

Kind regards,
Roman