parse "gopher://\xc9\\:0/v7\x1cq\xc6ҁ蘭\x11\xf85\x87\u007f\xc5mm\x8b_\xcf\xf1/\xbcQu$p$6w\x1cږ\xa6aw>ʣ\xfa\xb2": net/url: invalid control character in URL