Jaxer brings client-side technologies and paradigms to the server — quite literally. Every HTML (and PHP) document will be parsed and "executed" by Jaxer on the server prior to being re-serialized and sent to the client. Of course, any JavaScript not designated to be run on the server will not be executed in Jaxer. However, all HTML and CSS content will be used to create the DOM just as it would in a browser. Several current limitations of Jaxer arise from this fact.