return errors.New("redirect must specify URI, authority, scheme, or port")
	}

	if redirect.RedirectCode != 0 {
		if redirect.RedirectCode < 300 || redirect.RedirectCode > 399 {
			return fmt.Errorf("%d is not a valid redirect code, must be 3xx", redirect.RedirectCode)
		}
	}
	if redirect.Scheme != "" && redirect.Scheme != "http" && redirect.Scheme != "https" {

			redirect: &networking.HTTPRedirect{
				Uri:          "t",
				Authority:    "",
				RedirectCode: 299,
			},
			valid: false,
		},
		{
			name: "too large redirect code",
			redirect: &networking.HTTPRedirect{
				Uri:          "t",
				Authority:    "",
				RedirectCode: 400,
			},
			valid: false,
		},
		{
			name: "empty authority",