clone timing out behind firewall

[gaigUXD]

When I am behind a firewall, the clone operation times out:

Error: Command failed: Cloning into 'my-project'...
fatal: unable to connect to github.com:
github.com[0: 192.30.252.129]: errno=Operation timed out

Am I able to configure gift to do something like this?
git config --global url."https://github.com".insteadOf git://github.com

[notatestuser]

Why would you set it in config? Just clone with an https url instead. e.g.
$ node -e "require('gift').clone('https://github.com/notatestuser/gift.git', 'gift', function(){})"