---
title: Access-Control-Allow-Methods
slug: Web/HTTP/Headers/Access-Control-Allow-Methods
tags:
  - 跨域资源共享
  - 首部
translation_of: Web/HTTP/Headers/Access-Control-Allow-Methods
---
<p>{{HTTPSidebar}}</p>

<p>响应首部 <strong><code>Access-Control-Allow-Methods</code></strong> 在对 {{glossary("preflight request")}}.（预检请求）的应答中明确了客户端所要访问的资源允许使用的方法或方法列表。</p>

<table class="properties">
 <tbody>
  <tr>
   <th scope="row">报头类型</th>
   <td>{{Glossary("Response header")}}</td>
  </tr>
  <tr>
   <th scope="row">{{Glossary("Forbidden header name")}}</th>
   <td>no</td>
  </tr>
 </tbody>
</table>

<h2 id="语法">语法</h2>

<pre class="syntaxbox">Access-Control-Allow-Methods: &lt;method&gt;, &lt;method&gt;, ...
</pre>

<h2 id="指令">指令</h2>

<dl>
 <dt>&lt;method&gt;</dt>
 <dd>用逗号隔开的允许使用的 <a href="/en-US/docs/Web/HTTP/Methods">HTTP request methods</a> 列表。</dd>
</dl>

<h2 id="例子">例子</h2>

<pre>Access-Control-Allow-Methods: POST, GET, OPTIONS</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">注释</th>
  </tr>
  <tr>
   <td>{{SpecName('Fetch','#http-access-control-allow-methods', 'Access-Control-Allow-Methods')}}</td>
   <td>{{Spec2("Fetch")}}</td>
   <td>Initial definition</td>
  </tr>
 </tbody>
</table>

<h2 id="浏览器兼容性">浏览器兼容性</h2>

<p>{{Compat("http.headers.Access-Control-Allow-Methods")}}</p>

<h2 id="兼容性注解">兼容性注解</h2>

<ul>
 <li>最新规范中提到的通配符值(*)尚未在以下浏览器中实现:
  <ul>
   <li>Chromium: <a href="https://bugs.chromium.org/p/chromium/issues/detail?id=615313">Issue 615313</a></li>
   <li>Firefox: {{bug(1309358)}}</li>
   <li>Servo: <a href="https://github.com/servo/servo/issues/13283">Issue 13283</a></li>
  </ul>
 </li>
</ul>

<h2 id="查看更多">查看更多</h2>

<ul>
 <li>{{HTTPHeader("Access-Control-Allow-Origin")}}</li>
 <li>{{HTTPHeader("Access-Control-Expose-Headers")}}</li>
 <li>{{HTTPHeader("Access-Control-Allow-Headers")}}</li>
 <li>{{HTTPHeader("Access-Control-Request-Method")}}</li>
</ul>