EventSource: open event
The open event of the EventSource API is fired when a connection with an event source is opened.
| Bubbles | No |
|---|---|
| Cancelable | No |
| Interface | Event |
| Event handler property | EventSource.onopen |
Examples
var evtSource = new EventSource('sse.php');
// addEventListener version
evtSource.addEventListener('open', (e) => {
console.log("The connection has been established.");
});
// onopen version
evtSource.onopen = (e) => {
console.log("The connection has been established.");
};
Specifications
| Specification |
|---|
| HTML Standard (HTML) # event-open |
Browser compatibility
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