The document discusses hwios, a real-time web application framework that leverages WebSocket technology for dynamic page updates without browser reloads. It compares traditional HTTP content management systems (CMS) with WebSocket CMS, highlighting the advantages of lower latency and better state management in the latter. The framework is built on well-known technologies such as Django and Twisted, emphasizing ease of use and a supportive community for developers.

1. HW IO S http://hwios.org

2. W ebsockets? H TTP transport W ebsocket transport Payload: HTTP Headers + data Unidirectional Connection closes after each response Payload: UTF-8 & Binary data Bidirectional Connecion can be kept open as long as needed Browser Webserver Browser Webserver Browser Webserver Browser Webserver

3. W ebsocket/HTTP CMS characteristics H TTP CMS URL triggers a full browser reload

4. Javascript state lost after each page reload

5. Document-focussed, temperate emphasis on client-side javascript

6. XHR transport for dynamic in-page upd ates

7. Large header overhead and TCP connection latency for small updates