method

send_preload_links_header

v7.1.3.2 - Show latest stable - 0 notes - Class: ActionView::Helpers::AssetTagHelper

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What's this?

send_preload_links_header(preload_links, max_header_size: MAX_HEADER_SIZE) private

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# File actionview/lib/action_view/helpers/asset_tag_helper.rb, line 642
        def send_preload_links_header(preload_links, max_header_size: MAX_HEADER_SIZE)
          return if preload_links.empty?
          response_present = respond_to?(:response) && response
          return if response_present && response.sending?

          if respond_to?(:request) && request
            request.send_early_hints("Link" => preload_links.join("\n"))
          end

          if response_present
            header = +response.headers["Link"].to_s
            preload_links.each do |link|
              break if header.bytesize + link.bytesize > max_header_size

              if header.empty?
                header << link
              else
                header << "," << link
              end
            end

            response.headers["Link"] = header
          end
        end

send_preload_links_header

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