How to use void handleHandshake(AwsHandshakeHandler handler) for cookie handling?

[DaeMonSxy]

How to use properly the cookie auth instead of request->authenticate ?
Do we need to use it for webpages and ws also, or only in server.on- (headers request) enough?

WServer.on("/syst", HTTP_GET, [](AsyncWebServerRequest *request) {
        sendHTMLResponse(request, system_html, sizeof(system_html), (TEXT_HTML), P_SYSTEM);
    });


void sendHTMLResponse(AsyncWebServerRequest *request, const uint8_t *htmlContent, size_t htmlSize, const char *contentType, html_pages_t setpage)
{
   
  if (dev_auth && !request->authenticate(dev_user, dev_pass))
        return request->requestAuthentication();
 

#if defined(ESP32)
    AsyncWebServerResponse *response = request->beginResponse(200, contentType, htmlContent, htmlSize);
#elif defined(ESP8266)
    AsyncWebServerResponse *response = request->beginResponse_P(200, contentType, htmlContent, htmlSize);
#endif

    response->addHeader((CONTENT_ENCODING), (GZIP));
    request->send(response);

    current_html_page = setpage;
}