module Devise::Controllers::Helpers

By default it is the root_path.

receives a symbol with the scope, and not the resource.
scope. Notice that differently from +after_sign_in_path_for+ this method
it in your ApplicationController to provide a custom hook for a custom
Method used by sessions controller to sign out a user. You can overwrite

def after_sign_out_path_for(resource_or_scope)
  scope = Devise::Mapping.find_scope!(resource_or_scope)
  router_name = Devise.mappings[scope].router_name
  context = router_name ? send(router_name) : self
  context.respond_to?(:root_path) ? context.root_path : "/"
end