parse "gopher://null.host:0/AwF\xbc\x88\xa70\x13\xcb\x1c>\xbc\xae\xa5\xeb\xea\xack\xee.\x81\x16\xb8\x03\xe9\x03\v\xd6n]\xc2\u0089\xe8S": net/url: invalid control character in URL