parse "gopher://\x13\x90\x84\xdeHBh3\x0fy5W\x97y_`\xec\xa6\x02\xc1S^\xd3\xf3\x8b\x95\xfe\xc88\xa1\xf6\xc7\xd8\x13\xff\xa1/": net/url: invalid control character in URL