code: func AllowAll() *Cors {
  	return New(Options{
  		AllowedOrigins: []string{"*"},
  		AllowedMethods: []string{
  			http.MethodHead,
  			http.MethodGet,
  			http.MethodPost,
  			http.MethodPut,
  			http.MethodPatch,
  			http.MethodDelete,
  		},
  		AllowedHeaders:   []string{"*"},
  		AllowCredentials: false,
  	})
  }
docs: // AllowAll create a new Cors handler with permissive configuration allowing all
  // origins with all standard methods with any header and credentials.