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EventSource 的方法close()用于关闭当前的连接，如果调用了此方法，则会将EventSource.readyState这个属性值设置为 2 (closed)
Note: 如果连接已经被关闭，此方法不会做任何事情
语法
eventSource.close();
参数
None.
返回值
Void.
例子
var button = document.querySelector('button');
var evtSource = new EventSource('sse.php');
button.onclick = function() {
console.log('Connection closed');
evtSource.close();
}
Note: 你可以在Github上查看这整个例子： Simple SSE demo using PHP.
规范
| Specification | Status | Comment |
|---|---|---|
| HTML Living Standard close() |
Living Standard | Initial definition |
浏览器兼容性
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This compatibility table still uses the old format,
because we haven't yet converted the data it contains.
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| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| EventSource support | 6 | 未实现 | 6.0 (6.0) | 未实现 | (Yes) | 5 |
| Available in shared and dedicated workers[1] | (Yes) | 未实现 | 53.0 (53.0) | 未实现 | (Yes) | (Yes) |
| Feature | Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|
| EventSource support | 4.4 | 45 | 未实现 | 12 | 4.1 |
| Available in shared and dedicated workers[1] | (Yes) | 53.0 (53.0) | 未实现 | (Yes) | (Yes) |
[1] But not service workers as yet.