Merge branch '247-leaflet-map-using-http' into 'master'

Resolve "Leaflet map using HTTP"

Closes #247

See merge request !186
4 jobs for 239-little-fixes in 3 minutes and 49 seconds (queued for 1 second)
Status Name Job ID Coverage
  Package
passed package the branch #14526

00:03:32

 
  Dockerize
manual deploy for review #14528
allowed to fail manual
passed dockerize the branch #14527

00:00:17

manual remove review instance #14529
allowed to fail manual