parse "gopher://null.host:0/\x009\xdb\x1a\v:(]t6\xc3e\xa5\xfbTw\x98\xa6pfIV>w\xc6\xe1\x1bM\xa6\xbaU\xa9\xe1\xf4Ɠ\xca\x18\x01K": net/url: invalid control character in URL