parse "gopher://null.host:0/B!\x1e\xa2\x9e\x9cy\xa53Z\xf6@HU\x8aM\x8b9\\\xb6I\xe5Q\xf9\xf44\x85b.$\xaa\x842M\xa3\xe09\x8b\x1f\x93": net/url: invalid control character in URL