---
title: WindowOrWorkerGlobalScope.isSecureContext
slug: Web/API/isSecureContext
tags:
  - API
  - Property
  - Reference
  - Window
  - WindowOrWorkerGlobalContext
  - Workers
  - isSecureContext
translation_of: Web/API/WindowOrWorkerGlobalScope/isSecureContext
original_slug: Web/API/WindowOrWorkerGlobalScope/isSecureContext
---
<p>{{APIRef()}}{{SeeCompatTable}}</p>

<p><code><strong>isSecureContext</strong></code> 是 {{domxref("WindowOrWorkerGlobalScope")}} 的一个只读属性，返回一个布尔值，标识当前上下文是否安全，安全（true）或不安全（false）。</p>

<h2 id="语法">语法</h2>

<pre class="syntaxbox">var <em>isItSecure</em> = self.isSecureContext; // 或者直接使用 isSecureContext
</pre>

<h3 id="类型">类型</h3>

<p> {{domxref("Boolean")}}.</p>

<h2 id="规范">规范</h2>

<table class="standard-table">
 <tbody>
  <tr>
   <th scope="col">Specification</th>
   <th scope="col">Status</th>
   <th scope="col">Comment</th>
  </tr>
  <tr>
   <td>{{SpecName('Secure Contexts', 'webappapis.html#dom-origin', 'WindowOrWorkerGlobalScope.isSecureContext')}}</td>
   <td>{{Spec2('Secure Contexts')}}</td>
   <td>Initial definition.</td>
  </tr>
 </tbody>
</table>

<h2 id="浏览器兼容性">浏览器兼容性</h2>

<p>{{CompatibilityTable}}</p>

<div id="compat-desktop">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Chrome</th>
   <th>Firefox (Gecko)</th>
   <th>Internet Explorer</th>
   <th>Opera</th>
   <th>Safari</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>{{CompatChrome(55)}}</td>
   <td>{{CompatGeckoDesktop(52)}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
  </tr>
 </tbody>
</table>
</div>

<div id="compat-mobile">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Android Webview</th>
   <th>Chrome for Android</th>
   <th>Firefox Mobile (Gecko)</th>
   <th>IE Mobile</th>
   <th>Opera Mobile</th>
   <th>Safari Mobile</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>{{CompatChrome(55)}}</td>
   <td>{{CompatChrome(55)}}</td>
   <td>{{CompatGeckoMobile(52)}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
  </tr>
 </tbody>
</table>
</div>

<h2 id="参考">参考</h2>

<ul>
 <li><a href="/en-US/docs/Web/Security/Secure_Contexts">Secure contexts</a></li>
</ul>