parse "gopher://null.host:0/\b\x97\x04(R\xd7\x02\x14\xbbHsP\xf5\x81\xb5\xad\x12\x05ԃ\x9e \xb6\x8a\xea\x19\xcc\x0e\xc6K\xf3Ȅ'": net/url: invalid control character in URL