A tool about cookies

A few days before deploying my project in production, I ran into an issue on the preproduction application: I was not able to log into the back office even though my credentials were correct. Who is to blame? My code? The authentication service? The server? The compiler (why not)? What about you, Yann?!

The problem was the cookie: It was never sent because of two misconfigured attributes path and domain. So I decided to spend 8 hours making this tool to gain 2 minutes of RTFM the next time I have to deal with cookies.

This tool is for educational purposes. It's not battle-tested so don't use it to prove your cookies are secure. Ping me on Github for issues.