Rack API is awkwardTL;DR: Rack API is poor when you consider streaming response bodies. class FooApplication class ErbPage def to_a head = "the head tag" sleep(2) body = "the body tag" sleep(2) [head, body] end end def call(env) [200, {}, ErbPage.new.to_a] end end class FakeRack def serve(application) status, headers, body = application.call({}) p :status => status p :headers => headers body.each do |string| p strin
