Server-sent events

Documentation

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.

Using server-sent events
A tutorial guide to writing both server and client side part of a server-sent events app.
EventSource reference
A reference to the client-side EventSource API.

Tools

See also

Specification