parse "gopher://\xf0\xa1\xff\xf6\xe9\xc33\xf8Y\x16&9\xb6\xe3\xd3M\xac\xb4\x9b^\x02\xedy\xf1\x96\xb9\xff0:0/q\xfex\xff\xea\xee\xc3;j\x9eLJ3\x96\x84\xeb\xa7\xdb\xdc\x0eZ\xfc\xf4\x14\x16\xb3p]\xa2\x9f\xce\xd7\a\xf7\xcf\xe0\xc6E\xb8N": net/url: invalid control character in URL