on the desktop browser works well
Geolocation problem
I'm guessing that's how Google Maps work on mobile devices. It sees that you are on a mobile device and doesn't show the +/- buttons as you can zoom in/out with fingers. There might be an option to always show those controls, I'd check in Google Maps API.
Geolocation problem
yes maybe.... anyway I think that it will be better to have also a zoom in/out with +/-
I will check in goole map api too
Thanks