parse "gopher://null.host:0/\x01\x06\x82\xe0zr\x1e\xd7\x13-\xab\x8co,D\x17\xd2@\b\x8c\x02\xce\x1a\b\x12\xe0_\xeb\xacl\a\x049": net/url: invalid control character in URL