parse "gopher://null.host:0/\a\x01\xbb\x8f\x80\xb52\x02;\xb8/\x04\xac\xa9\x06lBs\xeeG\x83\xe9\xa9z\x88\xfa\xea\xe7u\xa2\xc8@Ƨ0\xbegViS'*O\xdfL=֚\xd0\aW": net/url: invalid control character in URL