// If it comes here, that means nonce match.
	var previousResources []string
	var alwaysRespond bool
	w.UpdateWatchedResource(request.TypeUrl, func(wr *WatchedResource) *WatchedResource {
		previousResources = wr.ResourceNames
		wr.NonceAcked = request.ResponseNonce
		wr.ResourceNames = request.ResourceNames
		alwaysRespond = wr.AlwaysRespond
		wr.AlwaysRespond = false
		return wr
	})

	var alwaysRespond bool
	con.proxy.UpdateWatchedResource(request.TypeUrl, func(wr *model.WatchedResource) *model.WatchedResource {
		previousResources = wr.ResourceNames
		currentResources, _ = deltaWatchedResources(previousResources, request)
		wr.NonceAcked = request.ResponseNonce
		wr.ResourceNames = currentResources
		alwaysRespond = wr.AlwaysRespond
		wr.AlwaysRespond = false
		return wr
	})

			},
			response: false,
		},
		{
			name: "ack forced",
			proxy: &TestProxy{
				WatchedResources: map[string]*WatchedResource{
					model.EndpointType: {
						NonceSent:     "nonce",
						AlwaysRespond: true,
						ResourceNames: []string{"my-resource"},
					},
				},
			},
			request: &discovery.DiscoveryRequest{
				TypeUrl:       model.EndpointType,
				VersionInfo:   "v1",
				ResponseNonce: "nonce",

	// Refer to https://github.com/envoyproxy/envoy/issues/13009 for more details.
	for _, dependent := range WarmingDependencies(typeURL) {
		if dwr, exists := node.WatchedResources[dependent]; exists {
			dwr.AlwaysRespond = true
		}
	}
}

// WarmingDependencies returns the dependent typeURLs that need to be responded with
// for warming of this typeURL.
func WarmingDependencies(typeURL string) []string {