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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(EventHandler

语法

eventSource.onerror = function

例子

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

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

规范

Specification Status Comment
HTML Living Standard
onerror
Living Standard Initial definition

浏览器兼容性

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

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.

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