RackのMiddleware一覧 - dann@webdev - dann's portal
http://advent2008.hackruby.com/past/2008/12/15/a_collection_of_rack_middlewares/Rack::ETag - Automatically sets the ETag header on all String bodies.Rack::JSONP - Adds JSON-P support by stripping out ...
http://dann.g.hatena.ne.jp/dann/20081216/p1
いろいろ増えてるなあ。
http://b.hatena.ne.jp/entry/http://dann.g.hatena.ne.jp/dann/20081216/p1