EventSource.close()

The close() method of the EventSource interface closes the connection, if one is made, and sets the EventSource.readyState attribute to 2 (closed).

Note: If the connection is already closed, the method does nothing.

Syntax

eventSource.close();

Parameters

None.

Return value

Void.

Examples

var button = document.querySelector('button');
var evtSource = new EventSource('sse.php');

button.onclick = function() {
  console.log('Connection closed');
  evtSource.close();
}

Note: You can find a full example on GitHub — see Simple SSE demo using PHP.

Specifications

Specification Status Comment
HTML Living Standard
The definition of 'close()' in that specification.
Living Standard Initial definition

Browser compatibility

BCD tables only load in the browser

See also