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---
title: Notification.onerror
slug: Web/API/notification/onerror
tags:
- Notification.onerror
translation_of: Web/API/Notification/onerror
---
<p>{{APIRef("Web Notifications")}}</p>
<h2 id="Summary" name="Summary">Summary</h2>
<p>{{domxref("Notification")}} 接口的 onerror属性指定一个事件侦听器来接收 {{event("error")}} 事件。</p>
<p>当一个 {{domxref("Notification")}} 发生错误时，会发生这些事件（在许多情况下，一个错误阻止显示通知）。</p>
<p> </p>
<h2 id="Syntax" name="Syntax">Syntax</h2>
<pre class="syntaxbox"><em>Notification</em>.onerror = <em>EventListener</em>;</pre>
<h3 id="Value">Value</h3>
<p>A {{jsxref("function")}} which serves as the event handler for the {{event("error")}} event. When an error occurs, the specified function will be called. If <code>null</code>, no error handler is in effect.</p>
<h2 id="Specifications">Specifications</h2>
<table class="standard-table">
<thead>
<tr>
<th scope="col">Specification</th>
<th scope="col">Status</th>
<th scope="col">Comment</th>
</tr>
</thead>
<tbody>
<tr>
<td>{{SpecName('Web Notifications','#dom-notification-onerror','onerror')}}</td>
<td>{{Spec2('Web Notifications')}}</td>
<td>Initial specification.</td>
</tr>
</tbody>
</table>
<h2 id="Browser_compatibility">Browser compatibility</h2>
<p>{{Page("/en-US/docs/Web/API/Notification","Browser compatibility")}}</p>
<h2 id="See_also">See also</h2>
<ul>
<li>{{domxref("Notification")}}</li>
<li><a href="https://developer.mozilla.org/en-US/docs/Web/API/Notifications_API/Using_the_Notifications_API">Using the Notifications API</a></li>
</ul>
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