Failed to load script: No map loaded error

Issue

When loading the map, Google maps gives an error: No map loaded Failed to load script at http...

Cause

This issue is caused by a firewall or a web proxy when the server is behind a strict firewall that does not allow all outgoing traffic to the Internet.

Solution

Configure a firewall to allow access to the Google Maps Platform Services.

Tip

Open chrome and press F12. Reload the browser page where you can see the error as in the image above.

The browser's console will show you which pages it's trying to reach and which pages it's unable to access.