parse "gopher://\xde\xff\x1f*b\xfd/?%25EF%25BF%25BD%2540%2501%251B%2500%2510R%25EF%25BF%25BD2%25EF%25BF%25BDUU%25EF%25BF%25BDK%25EF%25BF%25BD%25EF%25BF%25BD%25EF%25BF%25BD%25EF%25BF%25BD%25EF%25BF%25BD%25EF%25BF%25BD%25EF%25BF%25BDI%25EF%25BF%25BDIL%25EF%25BF%25BDI%25EF%25BF%25BD%25EF%25BF%25BDK%25EF%25BF%25BD%25EF%25BF%25BDON%25EF%25BF%25BDO%25EF%25BF%25BDM%25EF%25BF%25BDM%253A0%252F%3D%253A%253A%25EF%25BF%25BD": net/url: invalid control character in URL