parse "gopher://null.host:0/\u0080\x18\x8f:W\xf7\xa3\xa2\xce\xfd\x19!\x06\xd7\xe61K\xc9T)\xac\xf13\xc1\x1e\xa3H\x86o\xa2\xfa\x00\xf2\x18\x9d\x81m\xfe \x9c\xcaJv\xe0\xfdp": net/url: invalid control character in URL