parse "gopher://null.host:0/y\xeb|v$\xcd\xee\xe6\x9c\xc9$\xafF\xdfL\xe4\x1a\xf6\xc8\xe0\x03g\x17\xf0\xb7\xdc\xfdX\x13\xec\xb3\xd1\x16\xe7": net/url: invalid control character in URL