title: Angular Universal - Only for crawler bots
body: <p>I'm using Angular Universal with my app, but I have some strange flickering when the page load (transition between server version and the actual app. And it does'nt work well with my route having Guards (user account pages for ex).</p>
  
  <p>I only need SSR for SEO... So maybe there is a way to use SSR only for crawler bots ? And serve the classic Angular app for users ?</p>
  
  <p>For now, I'm using the same server.ts from the Angular Universal repository.</p>
  
  <p>Thank you !</p>