BroadcastChannel: messageerror event

当频道收到一条无法反序列化的消息时会在 BroadcastChannel 对象上触发 messageerror 事件。

Bubbles No
Cancelable No
Interface MessageEvent
Event handler property onmessageerror

示例

以下代码使用 addEventListener 来监听消息和错误：

js

const channel = new BroadcastChannel("example-channel");

channel.addEventListener("message", (event) => {
  received.textContent = event.data;
});

channel.addEventListener("messageerror", (event) => {
  console.error(event);
});

使用 onmessage 和 onmessageerror 事件处理程序来实现相同效果：

js

const channel = new BroadcastChannel("example-channel");

channel.onmessage = (event) => {
  received.textContent = event.data;
};

channel.onmessageerror = (event) => {
  console.log(event);
};

规范

Specification
HTML Standard
# event-messageerror
HTML Standard
# handler-broadcastchannel-onmessageerror

浏览器兼容性

BCD tables only load in the browser

另见