parse "gopher://null.host:0/½\xcaʀ\xe8I\x90\xb6\xf9\x15\xb8\a\x11\xbb\xe5\x840=\x0f\xf4\xb3\x99\vCZ\u007f\xdeH \xa5:(\xc0\xf8!&-\x18\xf8\x86 _\x9a2\v\x00\x10T\xb5\x12\xddN3\xa5\v\x9e\xb1k\xe8\x1cz?\xe9\x87\xf7k\xc4Χ5Tcq": net/url: invalid control character in URL