When Client Location Indicator is enabled in leaflet map features no client location indicator is shown.
Set up a view with format Geolocation CommonMap using leaflet as the map provider and enable "Client Location Indicator" under settings/leaflet-settings/map-features - when viewing the map even once the navigator geolocation has been retrieved the indicator will not be shown.
I can see the issue in xdebug of MapFeatureFrontendBase.php as the library it attaches is "mapfeatures.leaflet_client_location_indicator" however the library set in geolocation_leaflet.libraries.yml is named "mapfeatures.client_location_indicator"
My suggestion is to just rename the library in geolocation_leaflet.libraries.yml but there may well be a better way someone more familiar with the code can see.
Fixed
4.0
Leaflet API
Replaced with generic approach in 4.x.
For 3.x please provide patch.
Automatically closed - issue fixed for 2 weeks with no activity.