EventSource.onerror

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since January 2020.

EventSource 的属性 onerror 是当发生错误且这个错误事件(error)被 EventSource 触发时调用的一个事件处理函数。

语法

在类似 addEventListener() 这样的方法中使用事件名称,或设置事件处理器属性。

js
addEventListener("error", (event) => {});

onerror = (event) => {};

示例

js
evtSource.onerror = function () {
  console.log("EventSource failed.");
};

备注: 你可以在 Github 上查看这个完整例子: Simple SSE demo using PHP.

规范

Specification
HTML
# event-error
HTML
# handler-eventsource-onerror

浏览器兼容性

Report problems with this compatibility data on GitHub
desktopmobileserver
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Deno
error event

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support

参见