---
title: BroadcastChannel.onmessageerror
slug: Web/API/BroadcastChannel/onmessageerror
translation_of: Web/API/BroadcastChannel/onmessageerror
---
<div>{{APIRef("HTML DOM")}}</div>

<p>位于 {{domxref("BroadcastChannel")}} 接口上的 <code><strong>onmessageerror</strong></code> 事件处理程序，它是一个 {{domxref("EventListener", "事件监听器")}}。当  <code>BroadcastChannel</code> 接收到一条无法 {{glossary("Deserialization", "反序列化")}}的消息时，会触发类型为 {{domxref("MessageError")}} 的 {{domxref("MessageEvent")}} 事件，此时会执行该事件处理程序。</p>

<p>{{AvailableInWorkers}}</p>

<h2 id="语法">语法</h2>

<pre class="syntaxbox">bc.onmessageerror = function() { ... };</pre>

<h2 id="规范">规范</h2>

<table class="standard-table">
 <tbody>
  <tr>
   <th scope="col">规范</th>
   <th scope="col">状态</th>
   <th scope="col">备注</th>
  </tr>
  <tr>
   <td>{{SpecName('HTML WHATWG', '#handler-broadcastchannel-onmessageerror', 'onmessageerror')}}</td>
   <td>{{Spec2('HTML WHATWG')}}</td>
   <td></td>
  </tr>
 </tbody>
</table>

<h2 id="浏览器兼容性">浏览器兼容性</h2>

<div>


<p>{{Compat("api.BroadcastChannel.onmessageerror")}}</p>
</div>

<h2 id="另见">另见</h2>

<ul>
 <li><a href="/en-US/docs/Web/API/Channel_Messaging_API/Using_channel_messaging">Using channel messaging</a></li>
</ul>