Add check on source in onData
Add check on source in onData

alex3165/react-mapbox-gl,alex3165/react-mapbox-gl,alex3165/react-mapbox-gl,lamuertepeluda/react-mapbox-gl,lamuertepeluda/react-mapbox-gl,lamuertepeluda/react-mapbox-gl,alex3165/react-mapbox-gl,lamuertepeluda/react-mapbox-gl