parse "gopher://null.host:0/7\xc8\x16\x80\xeav\xc6NO\x16\xcb3V\x82\x9e\xeed\x19\xb8~\u007f֩\x8d:\x80\xae\xb4\xb2&\u007f\b\xea\xbaqD\xcdmq\xaa\x19\x15S\xbc\x93\x93B\xdfE\x802Zp\xa1zX8\xd9\x04\x19t\x9f\xa9\xde\xd9\xc3\x04P\xb1\xf17&<\x18": net/url: invalid control character in URL