parse "gopher://null.host:0/A\xf6p\xb8\x10wX\xd3\xf5\xec\xaf\xf6\xaa\xed\x06D\xb9\x85\xd7y\x96\xd4\x7f\x8a\x7f\xfb(\xa9X\x97j\xb9pT9T\x11f}9\x1e\x13`9\xe6}\xde\xf8\xe7\\\xc2Tݮi\x83\xb9Rתҥ\xe5\x05": net/url: invalid control character in URL