web api instance method

EventSource: close() method

Available in workers

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

[!NOTE] If the connection is already closed, the method does nothing.

Syntax

close()

Parameters

None.

Return value

None (undefined).

Examples

const button = document.querySelector("button");
const evtSource = new EventSource("sse.php");

button.onclick = () => {
  console.log("Connection closed");
  evtSource.close();
};

[!NOTE] You can find a full example on GitHub — see Simple SSE demo using PHP.

Specifications

SpecificationsStandards references are available on the canonical MDN page.

Browser compatibility

Browser compatibilityCompatibility data is available on the canonical MDN page.