JS current location not works in iOS

I have a page that contains a code that gets current location from the device and load other stuff based on the location with this code:

if (navigator.geolocation) {
    navigator.geolocation.getCurrentPosition(successFunction);
} else {
    // Make API call to the GeoIP services
}

It works on all android devices which I tested, but in iOS and macOS, It's not working. Neither if nor else. Seems like it stuck at getting current location.

Any help?

from JS current location not works in iOS