stale_session_check!

# File actionpack/lib/action_dispatch/middleware/session/abstract_store.rb, line 222
        def stale_session_check!
          yield
        rescue ArgumentError => argument_error
          if argument_error.message =~ %r{undefined class/module ([\w:]*\w)}
            begin
              # Note that the regexp does not allow $1 to end with a ':'
              $1.constantize
            rescue LoadError, NameError => const_error
              raise ActionDispatch::Session::SessionRestoreError, "Session contains objects whose class definition isn't available.\nRemember to require the classes for all objects kept in the session.\n(Original exception: #{const_error.message} [#{const_error.class}])\n"
            end
            retry
          else
            raise
          end
        end