---
title: Cookie2
slug: Web/HTTP/Headers/Cookie2
tags:
  - 废弃
  - 请求首部
  - 首部
translation_of: Web/HTTP/Headers/Cookie2
---
<div>{{HTTPSidebar}} {{obsolete_header}}</div>

<p>这个已经被废弃的 <strong><code>Cookie2</code></strong> 请求首部曾经被用来告知浏览器该用户代理支持“新型” cookies，但是现代的用户代理一般使用 {{HTTPHeader("Cookie")}} 来替代 Cookie2<strong>。</strong></p>

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

<h2 id="示例">示例</h2>

<pre>Cookie2: $Version="1"</pre>

<h2 id="规范">规范</h2>

<table class="standard-table">
 <tbody>
  <tr>
   <th scope="col">Specification</th>
   <th scope="col">Title</th>
  </tr>
  <tr>
   <td>{{RFC("2965", "Cookie2")}}</td>
   <td>Historic specification of HTTP State Management Mechanism, obsoleted by {{RFC("6265")}}</td>
  </tr>
 </tbody>
</table>

<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.Cookie2")}}</p>

<h2 id="相关内容">相关内容</h2>

<ul>
 <li>{{HTTPHeader("Cookie")}}</li>
 <li>{{domxref("Document.cookie")}}</li>
</ul>