parse "gopher://null.host:0/òÚ\xf5\xcd\xf6 x\xe7\xd1S̵\x05_`\x92\xf4?۟7\xa6\xaf\xd9\xf8\xd1\\[M\x15U\x94X\xf4$:": net/url: invalid control character in URL