def handleConfirm(page, message)
      val = @procs[:confirm].map { |handler| handler.call(page, message) }.last
      val.nil? || !!val
    end
def handleConfirm(page, message)
      val = @procs[:confirm].map { |handler| handler.call(page, message) }.last
      val.nil? || !!val
    end
interface ConfirmHandler

 The returned value is determined by the last registered :confirm listener proc.
 If it is nil, return true, otherwise return that value as a boolean.

 @see Browser#confirm