parse "gopher://null.host:0/F\xc3{B\x9c]JK\x01M\x1d\xb3\x13\xc1\xfe\xf4H\xa8\xbe\xf3\x82\xe5\x9f\x01\x7f\x17\x98\x80\x8b\x12\x8fN": net/url: invalid control character in URL