parse "gopher://null.host:0/\x10\xd9E\x93\x9e\xbe\xca\xe6\xe0\xd2\xd2\x1b@V_eVs\xccj\x89Y-! \x92g\xd1\xc6-\xca\xf7\xb4fJ`w": net/url: invalid control character in URL