parse "gopher://+*\xefgE==\x80z\x87\xe2A\xef~Z\xdd\xf6\xc3\xcfJ\xbd(\xa4\x1c\xf0\xc0n7\xe4\a\xf6u\x9d\xefk/x==\x13\xbf&\xce\xdbO\x8b\xf0": net/url: invalid control character in URL