files/zh-cn/web/http/headers/accept-ch/index.html


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---
title: Accept-CH
slug: Web/HTTP/Headers/Accept-CH
translation_of: Web/HTTP/Headers/Accept-CH
---
<div>{{HTTPSidebar}}{{securecontext_header}}{{SeeCompatTable}}</div>

<p><code><strong>Accept-CH</strong></code> 头由服务器设置，以指定客户端应在后续请求中应包含哪些客户端<a href="/en-US/docs/Glossary/Client_hints">Client Hints</a>提示头。</p>


<table class="properties">
 <tbody>
  <tr>
   <th scope="row">Header type</th>
   <td>{{Glossary("Response header")}}</td>
  </tr>
  <tr>
   <th scope="row">{{Glossary("Forbidden header name")}}</th>
   <td>?</td>
  </tr>
 </tbody>
</table>

<div class="blockIndicator note">
<p><strong>注意:</strong> <a href="/en-US/docs/Glossary/Client_hints">Client Hints</a>只能在安全源（通过TLS）上访问。所有安全的请求都应该持久化Accept-CH和Accept-CH-Lifetime头，以确保<a href="/en-US/docs/Glossary/Client_hints">Client Hints</a>可靠地发送。</p>
</div>

<h2 id="语法">语法</h2>

<pre class="syntaxbox">Accept-CH: &lt;list of client hints&gt;
</pre>

<h2 id="例子">例子</h2>

<pre>Accept-CH: DPR, Viewport-Width
Accept-CH: Width
Accept-CH-Lifetime: 86400
Vary: DPR, Viewport-Width, Width
</pre>

<div class="blockIndicator note">
<p><strong>注意:</strong>  牢记要根据所接受的Client Hints<a href="https://developer.mozilla.org/en-US/docs/Glossary/Client_hints#Varying_Client_Hints">更改响应</a>。</p>
</div>

<h2 id="浏览器兼容性">浏览器兼容性</h2>

<p class="hidden">The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out <a href="https://github.com/mdn/browser-compat-data">https://github.com/mdn/browser-compat-data</a> and send us a pull request.</p>

<p>{{Compat("http.headers.Accept-CH")}}</p>

<h2 id="相关内容">相关内容</h2>

<ul>
 <li>{{HTTPHeader("Accept-CH-Lifetime")}}</li>
 <li>{{HTTPHeader("Vary")}}</li>
</ul>