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+---
+title: 'Feature-Policy: autoplay'
+slug: Web/HTTP/Headers/Feature-Policy/autoplay
+translation_of: Web/HTTP/Headers/Feature-Policy/autoplay
+---
+<div>{{HTTPSidebar}} {{SeeCompatTable}}</div>
+
+<p><span class="seoSummary">The HTTP {{HTTPHeader("Feature-Policy")}} header <code>autoplay</code> directive controls whether the current document is allowed to autoplay media requested through the {{domxref("HTMLMediaElement")}} interface.</span> When this policy is enabled and there were no user gestures, the {{domxref("Promise")}} returned by {{domxref("HTMLMediaElement.play()")}} will reject with a <code>DOMException</code>. The {{htmlattrxref("autoplay", "audio")}} attribute on {{HTMLElement("audio")}} and {{HTMLElement("video")}} elements will be ignored.</p>
+
+<p>For more details on autoplay and autoplay blocking, see the article <a href="/en-US/docs/Web/Media/Autoplay_guide">Autoplay guide for media and Web Audio APIs</a>.</p>
+
+<h2 id="语法">语法</h2>
+
+<pre class="syntaxbox">Feature-Policy: autoplay &lt;可选&gt;;</pre>
+
+<dl>
+ <dt>&lt;allowlist&gt;</dt>
+ <dd>{{page("Web/HTTP/Feature_Policy/Using_Feature_Policy", "allowlist")}} 默认值是<code>'self'</code>.</dd>
+</dl>
+
+<h2 id="参考说明">参考说明</h2>
+
+<table class="standard-table">
+ <thead>
+  <tr>
+   <th scope="col">参考说明</th>
+   <th scope="col">状态</th>
+   <th scope="col">注解</th>
+  </tr>
+ </thead>
+ <tbody>
+  <tr>
+   <td>{{SpecName('Feature Policy')}}</td>
+   <td>{{Spec2('Feature Policy')}}</td>
+   <td>Initial definition.</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="浏览器兼容性支持">浏览器兼容性支持</h2>
+
+
+
+<p>{{Compat("http.headers.Feature-Policy.autoplay")}}</p>
+
+<h2 id="See_also">See also</h2>
+
+<ul>
+ <li>{{HTTPHeader("Feature-Policy")}} header</li>
+ <li><a href="/en-US/docs/Web/HTTP/Feature_Policy">Feature Policy</a></li>
+ <li><a href="/en-US/docs/Web/HTTP/Feature_Policy/Using_Feature_Policy">Using Feature Policy</a></li>
+</ul>