parse "gopher://null.host:0/]\xec\xea\xf0Skc\xc0\xb6h\v\"\xaal5\x9dm\xf8\x9eK^֭\x1e\xed$\xf2\x8d-WŘ\x95K\xa96xSD&\xab": net/url: invalid control character in URL