cache_page

# File actionpack/lib/action_controller/caching/pages.rb, line 73
        def cache_page(content, path, extension = nil)
          return unless perform_caching
          path = page_cache_path(path, extension)

          instrument_page_cache :write_page, path do
            FileUtils.makedirs(File.dirname(path))
            File.open(path, "wb+") { |f| f.write(content) }
          end
        end