parse "gopher://null.host:0/Þ[j\x9cT\x19F\xd0MGR|\xd2\xf8\x03\x1d\xb0\x83\xcet\x87E\xb6C\xf66\xa4\xe7\xe96*N\x13\xfc\xf2,\x9cX": net/url: invalid control character in URL