parse "gopher://null.host:0/\u008aH?\xf8\x19\u007f\xd2o\v\xf2a\x9d5\xec?\x97^2R\u007fi\r\x03\xf5\xb7\x84\x03\xf5\xc9*\x8e\xafƎ": net/url: invalid control character in URL