def history
      require_special_pages_permission if is_special_page?(@page)

      @histories = @page.histories
      respond_to do |format|
        format.html
        format.json { render json: @histories.map { |history| history.expose_json } }
      end
    end
def history
      require_special_pages_permission if is_special_page?(@page)

      @histories = @page.histories
      respond_to do |format|
        format.html
        format.json { render json: @histories.map { |history| history.expose_json } }
      end
    end
GET /pages/1/history