Google Maps API access failed

In the case of non-external network, we call the Google API can not load the phenomenon of the map, you can change the domain name try maybe just fine

For example, my own access to the API is always written like this:

Https://maps.googleapis.com/maps/api/js?key= ... &sensor=true

The map is not loaded at this time of access.

If I replace maps.googleapis.com with ditu.google.cn, I can load the map normally,

Or you can add v=3.exp back to the Https://maps.googleapis.com/maps/api/js?

Although there will be a small problem but the map is normally loaded out, the outside network is the same!