parse "gopher://null.host:0/äg\xe6A\v\xdb\x1d\xd7J\x16\xb7\xc0\x84Z\xb3\xd8\xdd\xde<\xac<\x1a\\\xeasr0\xad\x98\xce\x19}\x900C?\xcd\xf2\xf5\xeb~\xe8\v_mV\x90\v\x96\x1f!\\\xb0\x1f\x06": net/url: invalid control character in URL