parse "gopher://null.host:0/M\x7f!\xc8\xe9\x8c\xd3\x0e\xae\x15\xd8*\x19^\x1cT\xc6\xd0\xfdT\x18\xa4\xc8\xc8\xc6c\xe6x$\xc8!|Z&\xbcco": net/url: invalid control character in URL