parse "gopher://null.host:0/RI^0\xf0\xcd`\xfa\x8b\x8e\xb4\xd1z\xa1\xdfM\xec2\x00\x95\x1b\x13\xe3\xc0\x06V\xbb\xa2$!\xf7\as": net/url: invalid control character in URL