Works fine for me, do you see anything in the debug logs?
Keep in mind that when you use the social authentication wizard, AM will try to make an HTTP GET request to the above mentioned well-known endpoint to figure out what endpoints/config to use for the authentication module.
If you are configuring it in VM, make sure you have connectivity to internet. That was the reason for me. There is also a chance of an SSL issue. So try to import the google certificates in your java keystore