Server-sent events

The EventSource API creates a connection to a server and listens to a stream of events sent by the server.

Learning resources on MDN

• EventSource
• EventSource: EventSource() constructor
• EventSource: close() method
• EventSource: error event
• EventSource: message event
• EventSource: open event
• EventSource: readyState property
• EventSource: url property
• EventSource: withCredentials property

Browser support (view on caniuse.com)

• Chrome 6 Released on 2010-09-02
• Chrome Android 18 Released on 2012-06-27
• Edge 79 Released on 2020-01-15
• Firefox 6 Released on 2011-08-16
• Firefox for Android 45 Released on 2016-03-08
• Safari 5 Released on 2010-06-07
• Safari on iOS 5 Released on 2011-10-12

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