raggi/capybara-puma — pull request #3 by ctaintor (2014-05-12 15:13:00+00:00)
Title: Uses 0.0.0.0 rather than 127.0.0.1

For some of my tests, I want a VM to be able to connect to my capybara host, thus it will be connecting on a different IP address (not 127.0.0.1). Changing the address to 0.0.0.0 makes the server listen to all local IPv4 locations.