parse "gopher://null.host:0/Ì\xc7v3\x9fO\x04\xfb.\v\x8d[\x05\x04\x11\xf6N\xa3\xd05\xb1\xf0Q\xb90Rv1*\x85\xe9\x00\xbc\xb2\xc3F\xf3'\x1c{\xed~v\xdb\xdd\xee\x90\xe3\a`x": net/url: invalid control character in URL