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---
title: 'Worker: messageerror event'
slug: Web/API/Worker/messageerror_event
translation_of: Web/API/Worker/messageerror_event
---
<div>{{APIRef}}</div>
<p>当 {{domxref('Worker')}} 对象接收到一条无法被反序列化的消息时， <code>messageerror</code> 事件将在该对象上被触发。</p>
<table class="properties">
<tbody>
<tr>
<th scope="row">是否冒泡</th>
<td>否</td>
</tr>
<tr>
<th scope="row">是否可取消</th>
<td>否</td>
</tr>
<tr>
<th scope="row">接口</th>
<td>{{domxref("MessageEvent")}}</td>
</tr>
<tr>
<th scope="row">对应事件处理属性</th>
<td><code><a href="/en-US/docs/Web/API/Worker/onmessageerror">onmessageerror</a></code></td>
</tr>
</tbody>
</table>
<h2 id="例子">例子</h2>
<p>创建一个 worker ，使用 <code><a href="/en-US/docs/Web/API/EventTarget/addEventListener">addEventListener()</a></code> 监听 <code>message</code> 和 <code>messageerror</code> 事件：</p>
<pre class="brush: js">// inside main.js
const worker = new Worker("static/scripts/worker.js");
worker.addEventListener("message", (event) => {
console.error(`Received message from worker: ${event}`);
});
worker.addEventListener("messageerror", (event) => {
console.error(`Error receiving message from worker: ${event}`);
});</pre>
<p>同样，可以使用 <code><a href="/en-US/docs/Web/API/WindowEventHandlers/onmessageerror">onmessageerror</a></code> 事件处理属性监听事件：</p>
<pre class="brush: js">// inside main.js
const worker = new Worker("static/scripts/worker.js");
worker.onmessage = (event) => {
console.error(`Received message from worker: ${event}`);
};
worker.onmessageerror = (event) => {
console.error(`Error receiving message from worker: ${event}`);
};</pre>
<h2 id="规范">规范</h2>
<table class="standard-table">
<tbody>
<tr>
<th scope="col">Specification</th>
<th scope="col">Status</th>
</tr>
<tr>
<td>{{SpecName('HTML WHATWG', 'indices.html#event-messageerror')}}</td>
<td>{{Spec2('HTML WHATWG')}}</td>
</tr>
</tbody>
</table>
<h2 id="浏览器兼容性">浏览器兼容性</h2>
<p>{{Compat("api.Worker.messageerror_event")}}</p>
<h2 id="另请参阅">另请参阅</h2>
<ul>
<li><code><a href="/en-US/docs/Web/API/Worker/postMessage">Worker.postMessage()</a></code></li>
<li>相关事件: <code><a href="/docs/Web/API/Worker/message_event">message</a></code>.</li>
</ul>
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