Not Found Error On Google Geolocation
The URL https://www.googleapis.com/geolocation/v1/geolocate?key=API_KEY is for sending POST requests. Since you are navigating it directly in your browser, it won't return any result.
You need to send a POST request with Request body to get the desired result.
Please refer to the Documentation page for Geolocation requests to get more information on creating your Request.