parse "gopher://null.host:0/Y\xdfZ\\\xf8Ax\xbaC~\xb4.F\xben\xae\xfe\xd3\x0e1d\xa8^[\xf8-4!\x12*P\x13\xef\xc6x\xef\x9bU\xaa\xec\xf2*\xa9\v\xbb\xd04\xe5\xd5": net/url: invalid control character in URL