By not having test cases for those specific domains, and by passing your input through some general purpose internal URL handling library that does more than yo

By not having test cases for those specific domains, and by passing your input through some general purpose internal URL handling library that does more than you thought it did [1]. Neither is (very) surprising. [1] https://rachelbythebay.com/w/2021/12/24/mkdir/ https://rachelbythebay.com/w/2021/12/24/mkdir/