lib/site_prism/loadable.rb
def load_validations_pass?
      self.class.load_validations.all? do |validation|
        passed, message = instance_eval(&validation)

        self.load_error = message if message && !passed
        passed
      end
    end
def load_validations_pass?
      self.class.load_validations.all? do |validation|
        passed, message = instance_eval(&validation)

        self.load_error = message if message && !passed
        passed
      end
    end
If any load validations from page subclasses returns false,
 immediately return false.