The open
event of the EventSource
API is fired when a connection with an event source is opened.
This event is not cancelable and does not bubble.
The open
event of the EventSource
API is fired when a connection with an event source is opened.
This event is not cancelable and does not bubble.
Use the event name in methods like addEventListener()
, or set an event handler property.
addEventListener('open', event => { }); onopen = event => { };
A generic Event
.
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."); };
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
open_event |
6 |
79 |
6 |
No |
12 |
5 |
4.4 |
18 |
45 |
12 |
5 |
1.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/EventSource/open_event