parse "gopher://null.host:0/ä\xf5j\x84\xeb\xd4;\x1d\xa7So^G\xb7zY!\x9az\x8b\x93@\xbd\x88r\xd5K\xffL\xa8w\x17\x93l\xe5\xdct\xfaA5a\xbd\xb4;\x02\xb6\x98\xcc\xeex^\x05\xbe\x1bK\x97燚R\xa2R\xbbS\xa2rW@\xa2\xe8E\x13\"Q\xe3\xfbR\xa2\x9ai\x89\xca\f\xd3'\xea": net/url: invalid control character in URL