When a user types in a URL that lacks a trailing / phab will send a 302 redirect to the URL with the /.

My installation uses a custom port and during the redirect the port is removed (and so defaults to 80).

A relatively recent version of the HTTP spec now allows relative URLs in 302 redirects but if you don't want that it should at least use the correct absolute url.

Steps to reproduce:

1. type in a phab url including a custom port: https://phab.mycompany.com:8001/w - note the missing trailing /
2. I am redirected to https://phab.mycompany.com/w/ without my custom port and the connection is refused by the host

phabricator 901e3051351dec3c041c683b6d1e718e587e2b4b (Sat, Dec 17)
arcanist fad85844314b151994769a461825c90f7400c145 (Oct 21 2016)
phutil 5ac2ca1214890d865bc57fab2715a322fdf02ab6 (Tue, Dec 6)