I am not sure where the problem is located but the google map will only be displayed while on localhost and not on server.
I use the following entries in the web-app.properties under modules/web/src
charts.map.freeApiKey = AIzaSyAqqvkvu0BYJI3-hV3dyAX4Ra5CCwGT7qE
charts.map.defaultZoom = 9.0
charts.map.defaultLatitude = 52.540014
charts.map.defaultLongitude = 13.415551
I only generate one side with a standard mapViewer
This key is a server key. I tested a browser and this server key under wordpress and only the server key works.
But both keys don´t work under cuba.