parse "gopher://null.host:0/\u009a\x9c\x16=c[\xc9\xc6R\xcc\xf3\xb2I\xf1h\xe2\x90\xf7~\xf1\xe7\x19;E*\x1e\xcb\xe9G\xf7}\x1e&t\\i": net/url: invalid control character in URL