parse "gopher://\xf0z\b\xf0\x93\x88&^\x16V\x96\xdb\x06\"\x04\v\x89\x06\xcd\xc2\xfcmba~$\xe3\x88V\xf5;\x8e}\f\x02\xae\x92\x021}8\x1d\xd1Et\xe2J\xb5S\x92/": net/url: invalid control character in URL