관리-도구
편집 파일: head.rb
# frozen_string_literal: true module Rack # Rack::Head returns an empty body for all HEAD requests. It leaves # all other requests unchanged. class Head def initialize(app) @app = app end def call(env) status, headers, body = @app.call(env) if env[REQUEST_METHOD] == HEAD [ status, headers, Rack::BodyProxy.new([]) do body.close if body.respond_to? :close end ] else [status, headers, body] end end end end