parse "gopher://null.host:0/a\xa6\xfa\xbb`\x97\xf4\x96\xe5\xcfk\xfe\xb6\x1cw\xfd\x125\xea0\x91\xfc\xf5Qp\xe50d\xeekѰ\xcb\xc0v\x86K": net/url: invalid control character in URL