parse "gopher://null.host:0/ö\xd53\x9e\f\xc3\\\xb1\xaf\x111\x82\xff\x98f\x18\xf26\xc7i\x98\x8b4\x19\xb1\b\xc9\x12\xd4p\x06-fGZ\xa4": net/url: invalid control character in URL