У вашего броузера проблема в совместимости с HTML5
In this tutorial we will take a look at displaying Google Maps in a React Native application and for that we need to make a api key with google developer console.
npm install react-native-maps --save
react-native link
pod 'GoogleMaps'
Build setting - header search path
$(SRCROOT)/../node_modules/react-native-maps/lib/ios/AirMaps
@import GoogleMaps;
[GMSServices provideAPIKey:@"YOUR_GOOGLE_MAP_API_KEY"];
Build phase - Compile sources
-DHAVE_GOOGLE_MAPS=1
react-native-maps: https://github.com/react-community/react-native-maps