> http://domains.google.com http://domains.google.com > http://domains.google.com/ http://domains.google.com/ > https://domains.google.com/ https://domains.go

> http://domains.google.com http://domains.google.com > http://domains.google.com/ http://domains.google.com/ > https://domains.google.com/ https://domains.google.com/ > http://domains.google.com/about/ http://domains.google.com/about/ > https://domains.google.com/about/ https://domains.google.com/about/ > https://domains.google.com/about// https://domains.google.com/about// Seems like HN should add a few lines of code to its duplicate url check.