{MatchType: &networking.StringMatch_Regex{Regex: "regex"}},
		},
		UnmatchedPreflights: networking.CorsPolicy_IGNORE,
	}
	expectedCorsPolicy := &cors.CorsPolicy{
		ForwardNotMatchingPreflights: wrapperspb.Bool(false),
		AllowOriginStringMatch: []*matcher.StringMatcher{
			{MatchPattern: &matcher.StringMatcher_Exact{Exact: "exact"}},
			{MatchPattern: &matcher.StringMatcher_Prefix{Prefix: "prefix"}},
			{

	// Istio start support this feature from 1.23.
	if proxy.VersionGreaterAndEqual(&model.IstioVersion{Major: 1, Minor: 23, Patch: -1}) {
		out.ForwardNotMatchingPreflights = forwardNotMatchingPreflights(in)
	}

	// nolint: staticcheck
	if in.AllowOrigins != nil {
		out.AllowOriginStringMatch = util.ConvertToEnvoyMatches(in.AllowOrigins)
	} else if in.AllowOrigin != nil {