parse "gopher://null.host:0/\u008c\xa0/\x17\x80\xa6X\x15:\x9c$\xafK\x12\x8c\x02\x81}\xa7\xe6W\x90\x87HM\xf5~\x05\xf7U\x13tI\\e": net/url: invalid control character in URL