parse "gopher://null.host:0/æS\xda\xc3\xdd\xc6\xdaF\xba\x8e\xb7\xf7q\x89\xd6\xfaBbP\xb85\"p\xcf}\xe3WN\xe6\"\x97G\b\x874\x97\xb0d": net/url: invalid control character in URL