parse "gopher://null.host:0/\x00\x19\xafBF\xd6Hxc\x12\xbf1\x18\x9f\x9f\x87g\xd66\xa2z\xe1sox\x9e\xcb\xe5\xa9\xf8\xfc\x10\xbc\x9c\x01\x0fm\xf1!\x19": net/url: invalid control character in URL