parse "gopher://null.host:0/\x16l\xac\x8fW\x8b\xccc\x13T\xa0/\xe3k(\xc9\x19\x82\xd7\xfb\x83\xc04R\xf0A\xb0&RPF\x90\x8b\x85\xbc=T0\xef\xe2\x16^@}b": net/url: invalid control character in URL