Traditionally, a web page has to send a request to the server to receive new data; that is, the page requests data from the server. With server-sent events, it's possible for a server to send new data to a web page at any time, by pushing messages to the web page. These incoming messages can be treated as Events + data inside the web page.
- Remy Sharp’s EventSource polyfill
- Yaffle’s EventSource polyfill
- Rick Waldron’s jquery plugin
- A Twitter like application powered by server-sent events and its code on Github.
- HTML5 and Server-sent events
- Server-sent events using Asp.Net
|Server-Sent Events||Recommendation||Initial definition.|
|Feature||Chrome||Firefox (Gecko)||Internet Explorer||Opera||Safari|
|EventSource support||6||6.0 (6.0) ||?||9 ||5|
|Feature||Android||Firefox Mobile (Gecko)||IE Mobile||Opera Mobile||Safari Mobile|
 Firefox currently does not support EventSource in web/shared workers. and prior to version 36 server-sent events do not reconnect automatically in case of a connection interrupt.
 Opera 9 partial supports Server-sent Events.
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