parse "gopher://null.host:0/st !\xf5Si\xdb7\x18'\xdc2\x18\x03\xff\xb0\x99\xc1h\xd5kX\xbc\x87\xce;\x17Lz\xe0\xe7Z\xf5\x18\xa3\x9d'\x18\x84\x9c\x17(t\xb2\xdc\xf3\"\\\x9ct\x12\x06\xd2\xfa\xa9\xe5\xf8\xc7\x03V\x9c/p\xc6Ez\x80\xf8\xf2C": net/url: invalid control character in URL