Be lazy, be ESI: HTTP caching and Symfony2 @ PHPDay 2011 05-13-2011 The document discusses HTTP caching in Symfony2, emphasizing its adherence to the HTTP caching specification while critiquing its lack of an application caching layer. It details how to create responses with caching headers and expiration settings, and introduces the concept of Edge Side Includes (ESI) for efficiently caching dyna
