Command 'Curl localhost' returning 'Curl: (52) Empty reply from server'

Question

Good afternoon!

The following is a description of the scenario: I’m using the corporate laptop, when I run the same command without being logged in to the VPN it returns the container page I created for testing:

docker container run -d -p 80:80 nginx

But after logging into the VPN and running the same command I get the mentioned message.

Note: Proxy environment variables, http_proxy are set to empty ''