parse "gopher://null.host:0/à\x02Z8 \x9eP\x92Ϛ\xefNL\x8eh\xf8;5\x1d\xca\xde\xc9>\xe7N\x16\xef\x9f}\a\x16\x16\xeb^ʤ\xcb": net/url: invalid control character in URL