code: func GenerateName(backendName string) string {
  	data := []byte("_TRAEFIK_BACKEND_" + backendName)
  
  	hash := sha1.New()
  	_, err := hash.Write(data)
  	if err != nil {
  		// Impossible case
  		log.Errorf("Fail to create cookie name: %v", err)
  	}
  
  	return fmt.Sprintf("_%x", hash.Sum(nil))[:cookieNameLength]
  }
docs: // GenerateName Generate a hashed name