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(Click to learn more.)"><span class="icon icon-question-mark "></span></a></div></form></li><li class=" "><a data-locale="de" href="/de/docs/Web/HTTP/Headers/Transfer-Encoding" class="button submenu-item"><span>Deutsch</span><span title="Diese Übersetzung ist Teil eines Experiments."><span class="icon icon-experimental "></span></span></a></li><li class=" "><a data-locale="en-US" href="/en-US/docs/Web/HTTP/Headers/Transfer-Encoding" class="button submenu-item"><span>English (US)</span></a></li><li class=" "><a data-locale="es" href="/es/docs/Web/HTTP/Headers/Transfer-Encoding" class="button submenu-item"><span>Español</span></a></li><li class=" "><a data-locale="ja" href="/ja/docs/Web/HTTP/Headers/Transfer-Encoding" class="button submenu-item"><span>日本語</span></a></li><li class=" "><a data-locale="ko" href="/ko/docs/Web/HTTP/Headers/Transfer-Encoding" class="button submenu-item"><span>한국어</span></a></li><li class=" "><a data-locale="pt-BR" href="/pt-BR/docs/Web/HTTP/Headers/Transfer-Encoding" class="button submenu-item"><span>Português (do Brasil)</span></a></li></ul></div></div></li></ul></div></div></div></div><div class="container"><div class="notecard localized-content-note"><p><a href="/zh-CN/docs/MDN/Community/Contributing/Translated_content#活跃语言">此页面由社区从英文翻译而来。了解更多并加入 MDN Web Docs 社区。</a></p></div></div><div class="main-wrapper"><div class="sidebar-container"><aside id="sidebar-quicklinks" class="sidebar" data-macro="HTTPSidebar"><button type="button" class="button action backdrop" aria-label="Collapse sidebar"><span class="button-wrap"></span></button><nav aria-label="Related Topics" class="sidebar-inner"><header class="sidebar-actions"><section class="sidebar-filter-container"><div class="sidebar-filter "><label id="sidebar-filter-label" class="sidebar-filter-label" for="sidebar-filter-input"><span class="icon icon-filter"></span><span class="visually-hidden">Filter sidebar</span></label><input id="sidebar-filter-input" autoComplete="off" class="sidebar-filter-input-field false" type="text" placeholder="Filter" value=""/><button type="button" class="button action has-icon clear-sidebar-filter-button"><span class="button-wrap"><span class="icon icon-cancel "></span><span class="visually-hidden">Clear filter input</span></span></button></div></section></header><div class="sidebar-inner-nav"><div class="in-nav-toc"><div class="document-toc-container"><section class="document-toc"><header><h2 class="document-toc-heading">在本文中</h2></header><ul class="document-toc-list"><li class="document-toc-item "><a class="document-toc-link" href="#语法">语法</a></li><li class="document-toc-item "><a class="document-toc-link" href="#指令">指令</a></li><li class="document-toc-item "><a class="document-toc-link" href="#示例">示例</a></li><li class="document-toc-item "><a class="document-toc-link" href="#规范">规范</a></li><li class="document-toc-item "><a class="document-toc-link" href="#浏览器兼容性">浏览器兼容性</a></li><li class="document-toc-item "><a class="document-toc-link" href="#参见">参见</a></li></ul></section></div></div><div class="sidebar-body"> <ol> <li class="section"><a href="/zh-CN/docs/Web/HTTP">HTTP</a></li> <li class="section no-link">指南：</li> <li><a href="/zh-CN/docs/Web/HTTP/Overview">HTTP 概述</a></li> <li><a href="/zh-CN/docs/Web/HTTP/Session">典型的 HTTP 会话</a></li> <li><a href="/zh-CN/docs/Web/HTTP/Messages">HTTP 消息</a></li> <li><a href="/zh-CN/docs/Web/HTTP/MIME_types">MIME 类型（IANA 媒体类型）</a></li> <li><a href="/zh-CN/docs/Web/HTTP/Compression">HTTP 协议中的数据压缩</a></li> <li><a href="/zh-CN/docs/Web/HTTP/Caching">HTTP 缓存</a></li> <li><a href="/zh-CN/docs/Web/HTTP/Authentication">HTTP 身份验证</a></li> <li><a href="/zh-CN/docs/Web/HTTP/Cookies">HTTP Cookie</a></li> <li><a href="/zh-CN/docs/Web/HTTP/Redirections">HTTP 的重定向</a></li> <li><a href="/zh-CN/docs/Web/HTTP/Conditional_requests">HTTP 条件请求</a></li> <li><a href="/zh-CN/docs/Web/HTTP/Range_requests">HTTP 范围请求</a></li> <li><a href="/zh-CN/docs/Web/HTTP/Content_negotiation">内容协商</a></li> <li><a href="/zh-CN/docs/Web/HTTP/Connection_management_in_HTTP_1.x">HTTP/1.x 的连接管理</a></li> <li><a href="/zh-CN/docs/Web/HTTP/Evolution_of_HTTP">HTTP 的发展</a></li> <li><a href="/zh-CN/docs/Web/HTTP/Protocol_upgrade_mechanism">协议升级机制</a></li> <li><a href="/zh-CN/docs/Web/HTTP/Proxy_servers_and_tunneling">Proxy servers and tunneling</a></li> <li><a href="/zh-CN/docs/Web/HTTP/Client_hints">HTTP 客户端提示（Clinet Hint）</a></li> <li class="toggle"> <details> <summary>HTTP 安全</summary> <ol> <li><a href="/zh-CN/docs/Web/Security/Practical_implementation_guides">确保你的站点安全</a></li> <li><a href="/en-US/observatory">HTTP Observatory</a></li> <li><a href="/zh-CN/docs/Web/HTTP/Permissions_Policy">权限策略</a></li> <li><a href="/zh-CN/docs/Web/HTTP/CSP">内容安全策略（CSP）</a></li> <li><a href="/zh-CN/docs/Web/HTTP/CORS">跨源资源共享（CORS）</a></li> <li><a class="only-in-en-us" title="此页面目前仅提供英文版本" href="/en-US/docs/Web/HTTP/Cross-Origin_Resource_Policy">Cross-Origin Resource Policy (CORP)</a></li> <li><a href="/zh-CN/docs/Web/HTTP/Headers/Strict-Transport-Security">Strict-Transport-Security</a></li> </ol> </details> </li> <li class="section no-link">参考：</li> <li class="toggle"> <details open=""> <summary>HTTP 标头</summary> <ol><li><a href="/zh-CN/docs/Web/HTTP/Headers/Accept"><code>Accept</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Accept-CH"><code>Accept-CH</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Accept-Encoding"><code>Accept-Encoding</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Accept-Language"><code>Accept-Language</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Accept-Patch"><code>Accept-Patch</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Accept-Post"><code>Accept-Post</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Accept-Ranges"><code>Accept-Ranges</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Access-Control-Allow-Credentials"><code>Access-Control-Allow-Credentials</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Access-Control-Allow-Headers"><code>Access-Control-Allow-Headers</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Access-Control-Allow-Methods"><code>Access-Control-Allow-Methods</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Access-Control-Allow-Origin"><code>Access-Control-Allow-Origin</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Access-Control-Expose-Headers"><code>Access-Control-Expose-Headers</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Access-Control-Max-Age"><code>Access-Control-Max-Age</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Access-Control-Request-Headers"><code>Access-Control-Request-Headers</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Access-Control-Request-Method"><code>Access-Control-Request-Method</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Age"><code>Age</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Allow"><code>Allow</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Alt-Svc"><code>Alt-Svc</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Alt-Used"><code>Alt-Used</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Attribution-Reporting-Eligible"><code>Attribution-Reporting-Eligible</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Attribution-Reporting-Register-Source"><code>Attribution-Reporting-Register-Source</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Attribution-Reporting-Register-Trigger"><code>Attribution-Reporting-Register-Trigger</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Authorization"><code>Authorization</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Cache-Control"><code>Cache-Control</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Clear-Site-Data"><code>Clear-Site-Data</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Connection"><code>Connection</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Digest"><code>Digest</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Disposition"><code>Content-Disposition</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-DPR"><code>Content-DPR</code></a><abbr class="icon icon-nonstandard" title="非标准。请在使用前检查跨浏览器支持。"> <span class="visually-hidden">非标准</span> </abbr><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Encoding"><code>Content-Encoding</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Language"><code>Content-Language</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Length"><code>Content-Length</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Location"><code>Content-Location</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Range"><code>Content-Range</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy"><code>Content-Security-Policy</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy-Report-Only"><code>Content-Security-Policy-Report-Only</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Type"><code>Content-Type</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Cookie"><code>Cookie</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Critical-CH"><code>Critical-CH</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Cross-Origin-Embedder-Policy"><code>Cross-Origin-Embedder-Policy</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Cross-Origin-Opener-Policy"><code>Cross-Origin-Opener-Policy</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Cross-Origin-Resource-Policy"><code>Cross-Origin-Resource-Policy</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Date"><code>Date</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Device-Memory"><code>Device-Memory</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/DNT"><code>DNT</code></a><abbr class="icon icon-nonstandard" title="非标准。请在使用前检查跨浏览器支持。"> <span class="visually-hidden">非标准</span> </abbr><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Downlink"><code>Downlink</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/DPR"><code>DPR</code></a><abbr class="icon icon-nonstandard" title="非标准。请在使用前检查跨浏览器支持。"> <span class="visually-hidden">非标准</span> </abbr><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Early-Data"><code>Early-Data</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/ECT"><code>ECT</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/ETag"><code>ETag</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Expect"><code>Expect</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Expect-CT"><code>Expect-CT</code></a><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Expires"><code>Expires</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Forwarded"><code>Forwarded</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/From"><code>From</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Host"><code>Host</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/If-Match"><code>If-Match</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/If-Modified-Since"><code>If-Modified-Since</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/If-None-Match"><code>If-None-Match</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/If-Range"><code>If-Range</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/If-Unmodified-Since"><code>If-Unmodified-Since</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Keep-Alive"><code>Keep-Alive</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Last-Modified"><code>Last-Modified</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Link"><code>Link</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Location"><code>Location</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Max-Forwards"><code>Max-Forwards</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/NEL"><code>NEL</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/No-Vary-Search"><code>No-Vary-Search</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Observe-Browsing-Topics"><code>Observe-Browsing-Topics</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr><abbr class="icon icon-nonstandard" title="非标准。请在使用前检查跨浏览器支持。"> <span class="visually-hidden">非标准</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Origin"><code>Origin</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Origin-Agent-Cluster"><code>Origin-Agent-Cluster</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy"><code>Permissions-Policy</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Pragma"><code>Pragma</code></a><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Priority"><code>Priority</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Proxy-Authenticate"><code>Proxy-Authenticate</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Proxy-Authorization"><code>Proxy-Authorization</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Range"><code>Range</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Referer"><code>Referer</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Referrer-Policy"><code>Referrer-Policy</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Refresh"><code>Refresh</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Report-To"><code>Report-To</code></a><abbr class="icon icon-nonstandard" title="非标准。请在使用前检查跨浏览器支持。"> <span class="visually-hidden">非标准</span> </abbr><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Reporting-Endpoints"><code>Reporting-Endpoints</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Repr-Digest"><code>Repr-Digest</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Retry-After"><code>Retry-After</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/RTT"><code>RTT</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Save-Data"><code>Save-Data</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Sec-Browsing-Topics"><code>Sec-Browsing-Topics</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr><abbr class="icon icon-nonstandard" title="非标准。请在使用前检查跨浏览器支持。"> <span class="visually-hidden">非标准</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Sec-CH-Prefers-Color-Scheme"><code>Sec-CH-Prefers-Color-Scheme</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Sec-CH-Prefers-Reduced-Motion"><code>Sec-CH-Prefers-Reduced-Motion</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Sec-CH-Prefers-Reduced-Transparency"><code>Sec-CH-Prefers-Reduced-Transparency</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Sec-CH-UA"><code>Sec-CH-UA</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Sec-CH-UA-Arch"><code>Sec-CH-UA-Arch</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Sec-CH-UA-Bitness"><code>Sec-CH-UA-Bitness</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Sec-CH-UA-Full-Version"><code>Sec-CH-UA-Full-Version</code></a><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Sec-CH-UA-Full-Version-List"><code>Sec-CH-UA-Full-Version-List</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Sec-CH-UA-Mobile"><code>Sec-CH-UA-Mobile</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Sec-CH-UA-Model"><code>Sec-CH-UA-Model</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Sec-CH-UA-Platform"><code>Sec-CH-UA-Platform</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Sec-CH-UA-Platform-Version"><code>Sec-CH-UA-Platform-Version</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Sec-Fetch-Dest"><code>Sec-Fetch-Dest</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Sec-Fetch-Mode"><code>Sec-Fetch-Mode</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Sec-Fetch-Site"><code>Sec-Fetch-Site</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Sec-Fetch-User"><code>Sec-Fetch-User</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Sec-GPC"><code>Sec-GPC</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr><abbr class="icon icon-nonstandard" title="非标准。请在使用前检查跨浏览器支持。"> <span class="visually-hidden">非标准</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Sec-Purpose"><code>Sec-Purpose</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Sec-WebSocket-Accept"><code>Sec-WebSocket-Accept</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Sec-WebSocket-Extensions"><code>Sec-WebSocket-Extensions</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Sec-WebSocket-Key"><code>Sec-WebSocket-Key</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Sec-WebSocket-Protocol"><code>Sec-WebSocket-Protocol</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Sec-WebSocket-Version"><code>Sec-WebSocket-Version</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Server"><code>Server</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Server-Timing"><code>Server-Timing</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Service-Worker-Navigation-Preload"><code>Service-Worker-Navigation-Preload</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Set-Cookie"><code>Set-Cookie</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Set-Login"><code>Set-Login</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/SourceMap"><code>SourceMap</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Speculation-Rules"><code>Speculation-Rules</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Strict-Transport-Security"><code>Strict-Transport-Security</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Supports-Loading-Mode"><code>Supports-Loading-Mode</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/TE"><code>TE</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Timing-Allow-Origin"><code>Timing-Allow-Origin</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Tk"><code>Tk</code></a><abbr class="icon icon-nonstandard" title="非标准。请在使用前检查跨浏览器支持。"> <span class="visually-hidden">非标准</span> </abbr><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Trailer"><code>Trailer</code></a></li><li><em><a href="/zh-CN/docs/Web/HTTP/Headers/Transfer-Encoding" aria-current="page"><code>Transfer-Encoding</code></a></em></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Upgrade"><code>Upgrade</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Upgrade-Insecure-Requests"><code>Upgrade-Insecure-Requests</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/User-Agent"><code>User-Agent</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Vary"><code>Vary</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Via"><code>Via</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Viewport-Width"><code>Viewport-Width</code></a><abbr class="icon icon-nonstandard" title="非标准。请在使用前检查跨浏览器支持。"> <span class="visually-hidden">非标准</span> </abbr><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Want-Content-Digest"><code>Want-Content-Digest</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Want-Repr-Digest"><code>Want-Repr-Digest</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Warning"><code>Warning</code></a><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Width"><code>Width</code></a><abbr class="icon icon-nonstandard" title="非标准。请在使用前检查跨浏览器支持。"> <span class="visually-hidden">非标准</span> </abbr><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/WWW-Authenticate"><code>WWW-Authenticate</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/X-Content-Type-Options"><code>X-Content-Type-Options</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/X-DNS-Prefetch-Control"><code>X-DNS-Prefetch-Control</code></a><abbr class="icon icon-nonstandard" title="非标准。请在使用前检查跨浏览器支持。"> <span class="visually-hidden">非标准</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/X-Forwarded-For"><code>X-Forwarded-For</code></a><abbr class="icon icon-nonstandard" title="非标准。请在使用前检查跨浏览器支持。"> <span class="visually-hidden">非标准</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/X-Forwarded-Host"><code>X-Forwarded-Host</code></a><abbr class="icon icon-nonstandard" title="非标准。请在使用前检查跨浏览器支持。"> <span class="visually-hidden">非标准</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/X-Forwarded-Proto"><code>X-Forwarded-Proto</code></a><abbr class="icon icon-nonstandard" title="非标准。请在使用前检查跨浏览器支持。"> <span class="visually-hidden">非标准</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/X-Frame-Options"><code>X-Frame-Options</code></a><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/X-XSS-Protection"><code>X-XSS-Protection</code></a><abbr class="icon icon-nonstandard" title="非标准。请在使用前检查跨浏览器支持。"> <span class="visually-hidden">非标准</span> </abbr></li></ol> </details> </li> <li class="toggle"> <details> <summary>HTTP 请求方法</summary> <ol><li><a href="/zh-CN/docs/Web/HTTP/Methods/CONNECT"><code>CONNECT</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Methods/DELETE"><code>DELETE</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Methods/GET"><code>GET</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Methods/HEAD"><code>HEAD</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Methods/OPTIONS"><code>OPTIONS</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Methods/PATCH"><code>PATCH</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Methods/POST"><code>POST</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Methods/PUT"><code>PUT</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Methods/TRACE"><code>TRACE</code></a></li></ol> </details> </li> <li class="toggle"> <details> <summary>HTTP 响应状态码</summary> <ol><li><a href="/zh-CN/docs/Web/HTTP/Status/100"><code>100 Continue</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/101"><code>101 Switching Protocol</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/102"><code>102 Processing</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/103"><code>103 Early Hints</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/200"><code>200 OK</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/201"><code>201 Created</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/202"><code>202 Accepted</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/203"><code>203 Non-Authoritative Information</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/204"><code>204 No Content</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/205"><code>205 Reset Content</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/206"><code>206 Partial Content</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/207"><code>207 Multi-Status</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/208"><code>208 Already Reported</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/226"><code>226 IM Used</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/300"><code>300 Multiple Choices</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/301"><code>301 Moved Permanently</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/302"><code>302 Found</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/303"><code>303 See Other</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/304"><code>304 Not Modified</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/307"><code>307 Temporary Redirect</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/308"><code>308 Permanent Redirect</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/400"><code>400 Bad Request</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/401"><code>401 Unauthorized</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/402"><code>402 Payment Required</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/403"><code>403 Forbidden</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/404"><code>404 Not Found</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/405"><code>405 Method Not Allowed</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/406"><code>406 Not Acceptable</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/407"><code>407 Proxy Authentication Required</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/408"><code>408 Request Timeout</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/409"><code>409 Conflict</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/410"><code>410 Gone</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/411"><code>411 Length Required</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/412"><code>412 Precondition Failed</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/413"><code>413 Content Too Large</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/414"><code>414 URI Too Long</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/415"><code>415 Unsupported Media Type</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/416"><code>416 Range Not Satisfiable</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/417"><code>417 Expectation Failed</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/418"><code>418 I'm a teapot</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/421"><code>421 Misdirected Request</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/422"><code>422 Unprocessable Entity</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/423"><code>423 Locked</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/424"><code>424 Failed Dependency</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/425"><code>425 Too Early</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/426"><code>426 Upgrade Required</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/428"><code>428 Precondition Required</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/429"><code>429 Too Many Requests</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/431"><code>431 Request Header Fields Too Large</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/451"><code>451 Unavailable For Legal Reasons</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/500"><code>500 Internal Server Error</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/501"><code>501 Not Implemented</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/502"><code>502 Bad Gateway</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/503"><code>503 Service Unavailable</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/504"><code>504 Gateway Timeout</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/505"><code>505 HTTP Version Not Supported</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/506"><code>506 Variant Also Negotiates</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/507"><code>507 Insufficient Storage</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/508"><code>508 Loop Detected</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/510"><code>510 Not Extended</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Status/511"><code>511 Network Authentication Required</code></a></li></ol> </details> </li> <li class="toggle"> <details> <summary>CSP 指令</summary> <ol><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/base-uri"><code>CSP: base-uri</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/block-all-mixed-content"><code>CSP: block-all-mixed-content</code></a><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/child-src"><code>CSP: child-src</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/connect-src"><code>CSP: connect-src</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/default-src"><code>CSP：default-src</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/fenced-frame-src"><code>CSP: fenced-frame-src</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/font-src"><code>CSP: font-src</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/form-action"><code>CSP: form-action</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/frame-ancestors"><code>CSP：frame-ancestors</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/frame-src"><code>CSP: frame-src</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/img-src"><code>CSP: img-src</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/manifest-src"><code>CSP: manifest-src</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/media-src"><code>CSP: media-src</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/object-src"><code>CSP: object-src</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/prefetch-src"><code>CSP: prefetch-src</code></a><abbr class="icon icon-nonstandard" title="非标准。请在使用前检查跨浏览器支持。"> <span class="visually-hidden">非标准</span> </abbr><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/report-to"><code>report-to</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/report-uri"><code>CSP: report-uri</code></a><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/require-trusted-types-for"><code>CSP: require-trusted-types-for</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/sandbox"><code>CSP: sandbox</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/script-src"><code>CSP: script-src</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/script-src-attr"><code>CSP: script-src-attr</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/script-src-elem"><code>CSP: script-src-elem</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/style-src"><code>CSP: style-src</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/style-src-attr"><code>CSP: style-src-attr</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/style-src-elem"><code>CSP: style-src-elem</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/trusted-types"><code>CSP: trusted-types</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/upgrade-insecure-requests"><code>CSP: upgrade-insecure-requests</code></a></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/worker-src"><code>CSP: worker-src</code></a></li></ol> </details> </li> <li class="toggle"> <details> <summary>CORS 错误</summary> <ol><li><a href="/zh-CN/docs/Web/HTTP/CORS/Errors/CORSDisabled">原因：CORS disabled</a></li><li><a href="/zh-CN/docs/Web/HTTP/CORS/Errors/CORSAllowOriginNotMatchingOrigin">原因：CORS header 'Access-Control-Allow-Origin' does not match 'xyz'</a></li><li><a href="/zh-CN/docs/Web/HTTP/CORS/Errors/CORSMissingAllowOrigin">原因：CORS header 'Access-Control-Allow-Origin' missing</a></li><li><a href="/zh-CN/docs/Web/HTTP/CORS/Errors/CORSOriginHeaderNotAdded">原因：CORS header 'Origin' cannot be added</a></li><li><a href="/zh-CN/docs/Web/HTTP/CORS/Errors/CORSPreflightDidNotSucceed">原因：CORS preflight channel did not succeed</a></li><li><a href="/zh-CN/docs/Web/HTTP/CORS/Errors/CORSDidNotSucceed">原因：CORS request did not succeed</a></li><li><a href="/zh-CN/docs/Web/HTTP/CORS/Errors/CORSExternalRedirectNotAllowed">原因：CORS request external redirect not allowed</a></li><li><a href="/zh-CN/docs/Web/HTTP/CORS/Errors/CORSRequestNotHttp">原因：CORS request not HTTP</a></li><li><a href="/zh-CN/docs/Web/HTTP/CORS/Errors/CORSNotSupportingCredentials">原因：Credential is not supported if the CORS header 'Access-Control-Allow-Origin' is '*'</a></li><li><a href="/zh-CN/docs/Web/HTTP/CORS/Errors/CORSMethodNotFound">原因：Did not find method in CORS header 'Access-Control-Allow-Methods'</a></li><li><a href="/zh-CN/docs/Web/HTTP/CORS/Errors/CORSMIssingAllowCredentials">原因：expected 'true' in CORS header 'Access-Control-Allow-Credentials'</a></li><li><a href="/zh-CN/docs/Web/HTTP/CORS/Errors/CORSInvalidAllowHeader">原因：invalid token 'xyz' in CORS header 'Access-Control-Allow-Headers'</a></li><li><a href="/zh-CN/docs/Web/HTTP/CORS/Errors/CORSInvalidAllowMethod">原因：invalid token 'xyz' in CORS header 'Access-Control-Allow-Methods'</a></li><li><a href="/zh-CN/docs/Web/HTTP/CORS/Errors/CORSMissingAllowHeaderFromPreflight">原因：missing token 'xyz' in CORS header 'Access-Control-Allow-Headers' from CORS preflight channel</a></li><li><a href="/zh-CN/docs/Web/HTTP/CORS/Errors/CORSMultipleAllowOriginNotAllowed">原因：Multiple CORS header 'Access-Control-Allow-Origin' not allowed</a></li></ol> </details> </li> <li class="toggle"> <details> <summary>权限策略指令</summary> <ol><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/accelerometer">Permissions-Policy: accelerometer</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/ambient-light-sensor">Permissions-Policy: ambient-light-sensor</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/attribution-reporting">Permissions-Policy: attribution-reporting</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/autoplay">Permissions-Policy: autoplay</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/bluetooth">Permissions-Policy: bluetooth</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/browsing-topics">Permissions-Policy: browsing-topics</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr><abbr class="icon icon-nonstandard" title="非标准。请在使用前检查跨浏览器支持。"> <span class="visually-hidden">非标准</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/camera">Permissions-Policy: camera</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/compute-pressure">Permissions-Policy: compute-pressure</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/display-capture">Permissions-Policy: display-capture</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/document-domain">Permissions-Policy: document-domain</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/encrypted-media">Permissions-Policy: encrypted-media</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/fullscreen">Permissions-Policy: fullscreen</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/gamepad">Permissions-Policy: gamepad</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/geolocation">Permissions-Policy: geolocation</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/gyroscope">Permissions-Policy: gyroscope</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/hid">Permissions-Policy: hid</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/identity-credentials-get">Permissions-Policy: identity-credentials-get</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/idle-detection">Permissions-Policy: idle-detection</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/local-fonts">Permissions-Policy: local-fonts</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/magnetometer">Permissions-Policy: magnetometer</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/microphone">Permissions-Policy: microphone</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/midi">Permissions-Policy: midi</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/otp-credentials">Permissions-Policy: otp-credentials</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/payment">Permissions-Policy: payment</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/picture-in-picture">Permissions-Policy: picture-in-picture</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/publickey-credentials-create">Permissions-Policy: publickey-credentials-create</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/publickey-credentials-get">Permissions-Policy: publickey-credentials-get</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/screen-wake-lock">Permissions-Policy: screen-wake-lock</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/serial">Permissions-Policy: serial</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/speaker-selection">Permissions-Policy: speaker-selection</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/storage-access">Permissions-Policy: storage-access</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/usb">Permissions-Policy: usb</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/web-share">Permissions-Policy: web-share</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/window-management">Permissions-Policy: window-management</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/xr-spatial-tracking">Permissions-Policy: xr-spatial-tracking</a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li></ol> </details> </li> <li><a href="/zh-CN/docs/Web/HTTP/Resources_and_specifications">HTTP 资源与规范</a></li> </ol> </div></div><section class="place side"></section></nav></aside><div class="toc-container"><aside class="toc"><nav><div class="document-toc-container"><section class="document-toc"><header><h2 class="document-toc-heading">在本文中</h2></header><ul class="document-toc-list"><li class="document-toc-item "><a class="document-toc-link" href="#语法">语法</a></li><li class="document-toc-item "><a class="document-toc-link" href="#指令">指令</a></li><li class="document-toc-item "><a class="document-toc-link" href="#示例">示例</a></li><li class="document-toc-item "><a class="document-toc-link" href="#规范">规范</a></li><li class="document-toc-item "><a class="document-toc-link" href="#浏览器兼容性">浏览器兼容性</a></li><li class="document-toc-item "><a class="document-toc-link" href="#参见">参见</a></li></ul></section></div></nav></aside><section class="place side"></section></div></div><main id="content" class="main-content "><article class="main-page-content" lang="zh-CN"><header><h1>Transfer-Encoding</h1><details class="baseline-indicator high"><summary><span class="indicator" role="img" aria-label="Baseline Check"></span><h2>Baseline <span class="not-bold">Widely available</span></h2><div class="browsers"><span class="engine" title="Supported in Chrome and Edge"><span class="browser chrome supported" role="img" aria-label="Chrome check"></span><span class="browser edge supported" role="img" aria-label="Edge check"></span></span><span class="engine" title="Supported in Firefox"><span class="browser firefox supported" role="img" aria-label="Firefox check"></span></span><span class="engine" title="Supported in Safari"><span class="browser safari supported" role="img" aria-label="Safari check"></span></span></div><span class="icon icon-chevron "></span></summary><div class="extra"><p>This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.</p><ul><li><a href="/zh-CN/docs/Glossary/Baseline/Compatibility" data-glean="baseline_link_learn_more" target="_blank" class="learn-more">Learn more</a></li><li><a href="#浏览器兼容性" data-glean="baseline_link_bcd_table">See full compatibility</a></li><li><a href="https://survey.alchemer.com/s3/7634825/MDN-baseline-feedback?page=%2Fzh-CN%2Fdocs%2FWeb%2FHTTP%2FHeaders%2FTransfer-Encoding&level=high" data-glean="baseline_link_feedback" class="feedback-link" target="_blank" rel="noreferrer">Report feedback</a></li></ul></div></details></header><div class="section-content"><p><strong><code>Transfer-Encoding</code></strong> 标头指明了将<a href="/zh-CN/docs/Glossary/Payload_body">有效负载体</a>安全传输给用户所采用的编码形式。</p> <div class="notecard note"> <p><strong>备注：</strong> <a href="https://zh.wikipedia.org/wiki/HTTP/2" class="external" target="_blank">HTTP/2</a> 禁止使用除 HTTP/2 特有的 <code>"trailers"</code> 以外的所有 Transfer-Encoding 标头。HTTP 2 提供了比分块传输更有效的数据流机制，并禁止使用该标头。在 HTTP/2 中使用该标头可能会导致特定的 <code>protocol error</code>，因为 HTTP/2 协议禁止使用该标头。</p> </div> <p><code>Transfer-Encoding</code> 是一个<a href="/zh-CN/docs/Web/HTTP/Headers#%E9%80%90%E8%B7%B3%EF%BC%88hop-by-hop%EF%BC%89%E6%A0%87%E5%A4%B4">逐跳传输标头</a>，即仅应用于两个节点之间的消息传递，而不是所请求的资源本身。一个多节点连接中的每一段都可以应用不同的 <code>Transfer-Encoding</code> 值。如果你想要将压缩后的数据应用于整个连接，那么请使用端到端标头 <a href="/zh-CN/docs/Web/HTTP/Headers/Content-Encoding"><code>Content-Encoding</code></a>。</p> <p>当这个标头出现在 <a href="/zh-CN/docs/Web/HTTP/Methods/HEAD"><code>HEAD</code></a> 请求的响应中，而这样的响应没有消息体，那么它其实指的是应用在相应的 <a href="/zh-CN/docs/Web/HTTP/Methods/GET"><code>GET</code></a> 请求的应答的值。</p> <figure class="table-container"><table class="properties"> <tbody> <tr> <th scope="row">标头类型</th> <td><a href="/zh-CN/docs/Glossary/Request_header">请求标头</a>、<a href="/zh-CN/docs/Glossary/Response_header">响应标头</a>、<a href="/zh-CN/docs/Glossary/Payload_header">有效负载标头</a></td> </tr> <tr> <th scope="row"><a href="/zh-CN/docs/Glossary/Forbidden_header_name">禁止修改的标头</a></th> <td>是</td> </tr> </tbody> </table></figure></div><section aria-labelledby="语法"><h2 id="语法"><a href="#语法">语法</a></h2><div class="section-content"><div class="code-example"><div class="example-header"><span class="language-name">http</span></div><pre class="brush: http notranslate"><code>Transfer-Encoding: chunked Transfer-Encoding: compress Transfer-Encoding: deflate Transfer-Encoding: gzip // 可以列出多个值，用逗号分割 Transfer-Encoding: gzip, chunked </code></pre></div></div></section><section aria-labelledby="指令"><h2 id="指令"><a href="#指令">指令</a></h2><div class="section-content"><dl> <dt id="chunked"><a href="#chunked"><code>chunked</code></a></dt> <dd> <p>数据以一系列分块的形式进行发送。<a href="/zh-CN/docs/Web/HTTP/Headers/Content-Length"><code>Content-Length</code></a> 标头在这种情况下不被发送。在每一个分块的开头需要添加当前分块的长度，以十六进制的形式表示，后面紧跟着“<code>\r\n</code>”，之后是分块本身，后面也是“<code>\r\n</code>”。终止块是一个常规的分块，不同之处在于其长度为 0。终止块后面是一个挂载（trailer），由一系列的标头（可能为空）构成。</p> </dd> <dt id="compress"><a href="#compress"><code>compress</code></a></dt> <dd> <p>采用 <a href="http://zh.wikipedia.org/wiki/LZW" class="external" target="_blank">Lempel-Ziv-Welch</a>（LZW）压缩算法。这个名称来自 UNIX 系统的 <em>compress</em> 程序，该程序实现了前述算法。与已从大多数 UNIX 发行版中消失的 compress 程序一样，如今几乎没有浏览器使用这种内容编码，部分原因是专利问题（2003 年到期）。</p> </dd> <dt id="deflate"><a href="#deflate"><code>deflate</code></a></dt> <dd> <p>采用 <a href="http://zh.wikipedia.org/wiki/Zlib" class="external" target="_blank">zlib</a> 结构（于 <a href="https://tools.ietf.org/html/rfc1950" class="external" target="_blank">RFC 1950</a> 定义）和 <a href="https://zh.wikipedia.org/wiki/Deflate" class="external" target="_blank"><em>deflate</em></a> 压缩算法（于 <a href="https://tools.ietf.org/html/rfc1952" class="external" target="_blank">RFC 1951</a> 定义）。</p> </dd> <dt id="gzip"><a href="#gzip"><code>gzip</code></a></dt> <dd> <p>表示采用 <a href="https://zh.wikipedia.org/wiki/LZ77%E4%B8%8ELZ78#LZ77" class="external" target="_blank">Lempel-Ziv coding</a>（LZ77）压缩算法，以及 32 位 CRC 校验的编码方式。这个编码方式最初由 UNIX 平台上的 <em>gzip</em> 程序采用。出于兼容性的考虑，HTTP/1.1 标准提议支持这种编码方式的服务器应该识别作为别名的 <code>x-gzip</code> 指令。</p> </dd> </dl></div></section><section aria-labelledby="示例"><h2 id="示例"><a href="#示例">示例</a></h2><div class="section-content"></div></section><section aria-labelledby="分块编码"><h3 id="分块编码"><a href="#分块编码">分块编码</a></h3><div class="section-content"><p>分块编码主要应用于如下场景，即要传输大量的数据，但是在请求在没有被处理完之前响应的长度是无法获得的。例如，当需要用从数据库中查询获得的数据生成一个大的 HTML 表格的时候，或者需要传输大量的图片的时候。一个分块响应形式如下：</p> <div class="code-example"><div class="example-header"><span class="language-name">http</span></div><pre class="brush: http notranslate"><code>HTTP/1.1 200 OK Content-Type: text/plain Transfer-Encoding: chunked 7\r\n Mozilla\r\n 11\r\n Developer Network\r\n 0\r\n \r\n </code></pre></div></div></section><h2 id="规范"><a href="#规范">规范</a></h2><table class="standard-table"><thead><tr><th scope="col">Specification</th></tr></thead><tbody><tr><td><a href="https://httpwg.org/specs/rfc9112.html#field.transfer-encoding">HTTP/1.1 <br/><small># field.transfer-encoding</small></a></td></tr></tbody></table><h2 id="浏览器兼容性"><a href="#浏览器兼容性">浏览器兼容性</a></h2><p>BCD tables only load in the browser<noscript> with JavaScript enabled. Enable JavaScript to view data.</noscript></p><section aria-labelledby="参见"><h2 id="参见"><a href="#参见">参见</a></h2><div class="section-content"><ul> <li><a href="/zh-CN/docs/Web/HTTP/Headers/Accept-Encoding"><code>Accept-Encoding</code></a></li> <li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Encoding"><code>Content-Encoding</code></a></li> <li><a href="/zh-CN/docs/Web/HTTP/Headers/Content-Length"><code>Content-Length</code></a></li> <li>规范挂载使用的标头字段：<a href="/zh-CN/docs/Web/HTTP/Headers/TE"><code>TE</code></a>（请求）和 <a href="/zh-CN/docs/Web/HTTP/Headers/Trailer"><code>Trailer</code></a>（响应）。</li> <li><a href="https://zh.wikipedia.org/wiki/%E5%88%86%E5%9D%97%E4%BC%A0%E8%BE%93%E7%BC%96%E7%A0%81" class="external" target="_blank">分块传输编码</a></li> </ul></div></section></article><aside class="article-footer"><div class="article-footer-inner"><div class="svg-container"><svg xmlns="http://www.w3.org/2000/svg" width="162" height="162" viewBox="0 0 162 162" fill="none" role="none"><mask id="b" 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Content available under <a href="/zh-CN/docs/MDN/Writing_guidelines/Attrib_copyright_license">a Creative Commons license</a>.</p></div></div></footer></div><script type="application/json" id="hydration">{"url":"/zh-CN/docs/Web/HTTP/Headers/Transfer-Encoding","doc":{"isMarkdown":true,"isTranslated":true,"isActive":true,"flaws":{},"title":"Transfer-Encoding","mdn_url":"/zh-CN/docs/Web/HTTP/Headers/Transfer-Encoding","locale":"zh-CN","native":"中文 (简体)","browserCompat":["http.headers.Transfer-Encoding"],"baseline":{"baseline":"high","baseline_high_date":"2018-01-29","baseline_low_date":"2015-07-29","support":{"chrome":"1","chrome_android":"18","edge":"12","firefox":"1","firefox_android":"4","safari":"1","safari_ios":"1"}},"sidebarHTML":"\n <ol>\n <li class=\"section\"><a href=\"/zh-CN/docs/Web/HTTP\">HTTP</a></li>\n <li class=\"section no-link\">指南：</li>\n <li><a href=\"/zh-CN/docs/Web/HTTP/Overview\">HTTP 概述</a></li>\n <li><a href=\"/zh-CN/docs/Web/HTTP/Session\">典型的 HTTP 会话</a></li>\n <li><a href=\"/zh-CN/docs/Web/HTTP/Messages\">HTTP 消息</a></li>\n <li><a href=\"/zh-CN/docs/Web/HTTP/MIME_types\">MIME 类型（IANA 媒体类型）</a></li>\n <li><a href=\"/zh-CN/docs/Web/HTTP/Compression\">HTTP 协议中的数据压缩</a></li>\n <li><a href=\"/zh-CN/docs/Web/HTTP/Caching\">HTTP 缓存</a></li>\n <li><a href=\"/zh-CN/docs/Web/HTTP/Authentication\">HTTP 身份验证</a></li>\n <li><a href=\"/zh-CN/docs/Web/HTTP/Cookies\">HTTP Cookie</a></li>\n <li><a href=\"/zh-CN/docs/Web/HTTP/Redirections\">HTTP 的重定向</a></li>\n <li><a href=\"/zh-CN/docs/Web/HTTP/Conditional_requests\">HTTP 条件请求</a></li>\n <li><a href=\"/zh-CN/docs/Web/HTTP/Range_requests\">HTTP 范围请求</a></li>\n <li><a href=\"/zh-CN/docs/Web/HTTP/Content_negotiation\">内容协商</a></li>\n <li><a href=\"/zh-CN/docs/Web/HTTP/Connection_management_in_HTTP_1.x\">HTTP/1.x 的连接管理</a></li>\n <li><a href=\"/zh-CN/docs/Web/HTTP/Evolution_of_HTTP\">HTTP 的发展</a></li>\n <li><a href=\"/zh-CN/docs/Web/HTTP/Protocol_upgrade_mechanism\">协议升级机制</a></li>\n <li><a href=\"/zh-CN/docs/Web/HTTP/Proxy_servers_and_tunneling\">Proxy servers and tunneling</a></li>\n <li><a href=\"/zh-CN/docs/Web/HTTP/Client_hints\">HTTP 客户端提示（Clinet Hint）</a></li>\n <li class=\"toggle\">\n <details>\n <summary>HTTP 安全</summary>\n <ol>\n <li><a href=\"/zh-CN/docs/Web/Security/Practical_implementation_guides\">确保你的站点安全</a></li>\n <li><a href=\"/en-US/observatory\">HTTP Observatory</a></li>\n <li><a href=\"/zh-CN/docs/Web/HTTP/Permissions_Policy\">权限策略</a></li>\n <li><a href=\"/zh-CN/docs/Web/HTTP/CSP\">内容安全策略（CSP）</a></li>\n <li><a href=\"/zh-CN/docs/Web/HTTP/CORS\">跨源资源共享（CORS）</a></li>\n <li><a class=\"only-in-en-us\" title=\"此页面目前仅提供英文版本\" href=\"/en-US/docs/Web/HTTP/Cross-Origin_Resource_Policy\">Cross-Origin Resource Policy (CORP)</a></li>\n <li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Strict-Transport-Security\">Strict-Transport-Security</a></li>\n </ol>\n </details>\n </li>\n <li class=\"section no-link\">参考：</li>\n <li class=\"toggle\">\n <details open=\"\">\n <summary>HTTP 标头</summary>\n <ol><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Accept\"><code>Accept</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Accept-CH\"><code>Accept-CH</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Accept-Encoding\"><code>Accept-Encoding</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Accept-Language\"><code>Accept-Language</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Accept-Patch\"><code>Accept-Patch</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Accept-Post\"><code>Accept-Post</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Accept-Ranges\"><code>Accept-Ranges</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Access-Control-Allow-Credentials\"><code>Access-Control-Allow-Credentials</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Access-Control-Allow-Headers\"><code>Access-Control-Allow-Headers</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Access-Control-Allow-Methods\"><code>Access-Control-Allow-Methods</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Access-Control-Allow-Origin\"><code>Access-Control-Allow-Origin</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Access-Control-Expose-Headers\"><code>Access-Control-Expose-Headers</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Access-Control-Max-Age\"><code>Access-Control-Max-Age</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Access-Control-Request-Headers\"><code>Access-Control-Request-Headers</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Access-Control-Request-Method\"><code>Access-Control-Request-Method</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Age\"><code>Age</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Allow\"><code>Allow</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Alt-Svc\"><code>Alt-Svc</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Alt-Used\"><code>Alt-Used</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Attribution-Reporting-Eligible\"><code>Attribution-Reporting-Eligible</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Attribution-Reporting-Register-Source\"><code>Attribution-Reporting-Register-Source</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Attribution-Reporting-Register-Trigger\"><code>Attribution-Reporting-Register-Trigger</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Authorization\"><code>Authorization</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Cache-Control\"><code>Cache-Control</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Clear-Site-Data\"><code>Clear-Site-Data</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Connection\"><code>Connection</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Digest\"><code>Digest</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Disposition\"><code>Content-Disposition</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-DPR\"><code>Content-DPR</code></a><abbr class=\"icon icon-nonstandard\" title=\"非标准。请在使用前检查跨浏览器支持。\">\n <span class=\"visually-hidden\">非标准</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Encoding\"><code>Content-Encoding</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Language\"><code>Content-Language</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Length\"><code>Content-Length</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Location\"><code>Content-Location</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Range\"><code>Content-Range</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy\"><code>Content-Security-Policy</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy-Report-Only\"><code>Content-Security-Policy-Report-Only</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Type\"><code>Content-Type</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Cookie\"><code>Cookie</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Critical-CH\"><code>Critical-CH</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Cross-Origin-Embedder-Policy\"><code>Cross-Origin-Embedder-Policy</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Cross-Origin-Opener-Policy\"><code>Cross-Origin-Opener-Policy</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Cross-Origin-Resource-Policy\"><code>Cross-Origin-Resource-Policy</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Date\"><code>Date</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Device-Memory\"><code>Device-Memory</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/DNT\"><code>DNT</code></a><abbr class=\"icon icon-nonstandard\" title=\"非标准。请在使用前检查跨浏览器支持。\">\n <span class=\"visually-hidden\">非标准</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Downlink\"><code>Downlink</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/DPR\"><code>DPR</code></a><abbr class=\"icon icon-nonstandard\" title=\"非标准。请在使用前检查跨浏览器支持。\">\n <span class=\"visually-hidden\">非标准</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Early-Data\"><code>Early-Data</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/ECT\"><code>ECT</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/ETag\"><code>ETag</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Expect\"><code>Expect</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Expect-CT\"><code>Expect-CT</code></a><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Expires\"><code>Expires</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Forwarded\"><code>Forwarded</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/From\"><code>From</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Host\"><code>Host</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/If-Match\"><code>If-Match</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/If-Modified-Since\"><code>If-Modified-Since</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/If-None-Match\"><code>If-None-Match</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/If-Range\"><code>If-Range</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/If-Unmodified-Since\"><code>If-Unmodified-Since</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Keep-Alive\"><code>Keep-Alive</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Last-Modified\"><code>Last-Modified</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Link\"><code>Link</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Location\"><code>Location</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Max-Forwards\"><code>Max-Forwards</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/NEL\"><code>NEL</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/No-Vary-Search\"><code>No-Vary-Search</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Observe-Browsing-Topics\"><code>Observe-Browsing-Topics</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr><abbr class=\"icon icon-nonstandard\" title=\"非标准。请在使用前检查跨浏览器支持。\">\n <span class=\"visually-hidden\">非标准</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Origin\"><code>Origin</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Origin-Agent-Cluster\"><code>Origin-Agent-Cluster</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy\"><code>Permissions-Policy</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Pragma\"><code>Pragma</code></a><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Priority\"><code>Priority</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Proxy-Authenticate\"><code>Proxy-Authenticate</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Proxy-Authorization\"><code>Proxy-Authorization</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Range\"><code>Range</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Referer\"><code>Referer</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Referrer-Policy\"><code>Referrer-Policy</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Refresh\"><code>Refresh</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Report-To\"><code>Report-To</code></a><abbr class=\"icon icon-nonstandard\" title=\"非标准。请在使用前检查跨浏览器支持。\">\n <span class=\"visually-hidden\">非标准</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Reporting-Endpoints\"><code>Reporting-Endpoints</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Repr-Digest\"><code>Repr-Digest</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Retry-After\"><code>Retry-After</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/RTT\"><code>RTT</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Save-Data\"><code>Save-Data</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Sec-Browsing-Topics\"><code>Sec-Browsing-Topics</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr><abbr class=\"icon icon-nonstandard\" title=\"非标准。请在使用前检查跨浏览器支持。\">\n <span class=\"visually-hidden\">非标准</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Sec-CH-Prefers-Color-Scheme\"><code>Sec-CH-Prefers-Color-Scheme</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Sec-CH-Prefers-Reduced-Motion\"><code>Sec-CH-Prefers-Reduced-Motion</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Sec-CH-Prefers-Reduced-Transparency\"><code>Sec-CH-Prefers-Reduced-Transparency</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Sec-CH-UA\"><code>Sec-CH-UA</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Sec-CH-UA-Arch\"><code>Sec-CH-UA-Arch</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Sec-CH-UA-Bitness\"><code>Sec-CH-UA-Bitness</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Sec-CH-UA-Full-Version\"><code>Sec-CH-UA-Full-Version</code></a><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Sec-CH-UA-Full-Version-List\"><code>Sec-CH-UA-Full-Version-List</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Sec-CH-UA-Mobile\"><code>Sec-CH-UA-Mobile</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Sec-CH-UA-Model\"><code>Sec-CH-UA-Model</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Sec-CH-UA-Platform\"><code>Sec-CH-UA-Platform</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Sec-CH-UA-Platform-Version\"><code>Sec-CH-UA-Platform-Version</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Sec-Fetch-Dest\"><code>Sec-Fetch-Dest</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Sec-Fetch-Mode\"><code>Sec-Fetch-Mode</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Sec-Fetch-Site\"><code>Sec-Fetch-Site</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Sec-Fetch-User\"><code>Sec-Fetch-User</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Sec-GPC\"><code>Sec-GPC</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr><abbr class=\"icon icon-nonstandard\" title=\"非标准。请在使用前检查跨浏览器支持。\">\n <span class=\"visually-hidden\">非标准</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Sec-Purpose\"><code>Sec-Purpose</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Sec-WebSocket-Accept\"><code>Sec-WebSocket-Accept</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Sec-WebSocket-Extensions\"><code>Sec-WebSocket-Extensions</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Sec-WebSocket-Key\"><code>Sec-WebSocket-Key</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Sec-WebSocket-Protocol\"><code>Sec-WebSocket-Protocol</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Sec-WebSocket-Version\"><code>Sec-WebSocket-Version</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Server\"><code>Server</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Server-Timing\"><code>Server-Timing</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Service-Worker-Navigation-Preload\"><code>Service-Worker-Navigation-Preload</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Set-Cookie\"><code>Set-Cookie</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Set-Login\"><code>Set-Login</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/SourceMap\"><code>SourceMap</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Speculation-Rules\"><code>Speculation-Rules</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Strict-Transport-Security\"><code>Strict-Transport-Security</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Supports-Loading-Mode\"><code>Supports-Loading-Mode</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/TE\"><code>TE</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Timing-Allow-Origin\"><code>Timing-Allow-Origin</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Tk\"><code>Tk</code></a><abbr class=\"icon icon-nonstandard\" title=\"非标准。请在使用前检查跨浏览器支持。\">\n <span class=\"visually-hidden\">非标准</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Trailer\"><code>Trailer</code></a></li><li><em><a href=\"/zh-CN/docs/Web/HTTP/Headers/Transfer-Encoding\" aria-current=\"page\"><code>Transfer-Encoding</code></a></em></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Upgrade\"><code>Upgrade</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Upgrade-Insecure-Requests\"><code>Upgrade-Insecure-Requests</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/User-Agent\"><code>User-Agent</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Vary\"><code>Vary</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Via\"><code>Via</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Viewport-Width\"><code>Viewport-Width</code></a><abbr class=\"icon icon-nonstandard\" title=\"非标准。请在使用前检查跨浏览器支持。\">\n <span class=\"visually-hidden\">非标准</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Want-Content-Digest\"><code>Want-Content-Digest</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Want-Repr-Digest\"><code>Want-Repr-Digest</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Warning\"><code>Warning</code></a><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Width\"><code>Width</code></a><abbr class=\"icon icon-nonstandard\" title=\"非标准。请在使用前检查跨浏览器支持。\">\n <span class=\"visually-hidden\">非标准</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/WWW-Authenticate\"><code>WWW-Authenticate</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/X-Content-Type-Options\"><code>X-Content-Type-Options</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/X-DNS-Prefetch-Control\"><code>X-DNS-Prefetch-Control</code></a><abbr class=\"icon icon-nonstandard\" title=\"非标准。请在使用前检查跨浏览器支持。\">\n <span class=\"visually-hidden\">非标准</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/X-Forwarded-For\"><code>X-Forwarded-For</code></a><abbr class=\"icon icon-nonstandard\" title=\"非标准。请在使用前检查跨浏览器支持。\">\n <span class=\"visually-hidden\">非标准</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/X-Forwarded-Host\"><code>X-Forwarded-Host</code></a><abbr class=\"icon icon-nonstandard\" title=\"非标准。请在使用前检查跨浏览器支持。\">\n <span class=\"visually-hidden\">非标准</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/X-Forwarded-Proto\"><code>X-Forwarded-Proto</code></a><abbr class=\"icon icon-nonstandard\" title=\"非标准。请在使用前检查跨浏览器支持。\">\n <span class=\"visually-hidden\">非标准</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/X-Frame-Options\"><code>X-Frame-Options</code></a><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/X-XSS-Protection\"><code>X-XSS-Protection</code></a><abbr class=\"icon icon-nonstandard\" title=\"非标准。请在使用前检查跨浏览器支持。\">\n <span class=\"visually-hidden\">非标准</span>\n</abbr></li></ol>\n </details>\n </li>\n <li class=\"toggle\">\n <details>\n <summary>HTTP 请求方法</summary>\n <ol><li><a href=\"/zh-CN/docs/Web/HTTP/Methods/CONNECT\"><code>CONNECT</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Methods/DELETE\"><code>DELETE</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Methods/GET\"><code>GET</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Methods/HEAD\"><code>HEAD</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Methods/OPTIONS\"><code>OPTIONS</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Methods/PATCH\"><code>PATCH</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Methods/POST\"><code>POST</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Methods/PUT\"><code>PUT</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Methods/TRACE\"><code>TRACE</code></a></li></ol>\n </details>\n </li>\n <li class=\"toggle\">\n <details>\n <summary>HTTP 响应状态码</summary>\n <ol><li><a href=\"/zh-CN/docs/Web/HTTP/Status/100\"><code>100 Continue</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/101\"><code>101 Switching Protocol</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/102\"><code>102 Processing</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/103\"><code>103 Early Hints</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/200\"><code>200 OK</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/201\"><code>201 Created</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/202\"><code>202 Accepted</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/203\"><code>203 Non-Authoritative Information</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/204\"><code>204 No Content</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/205\"><code>205 Reset Content</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/206\"><code>206 Partial Content</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/207\"><code>207 Multi-Status</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/208\"><code>208 Already Reported</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/226\"><code>226 IM Used</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/300\"><code>300 Multiple Choices</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/301\"><code>301 Moved Permanently</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/302\"><code>302 Found</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/303\"><code>303 See Other</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/304\"><code>304 Not Modified</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/307\"><code>307 Temporary Redirect</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/308\"><code>308 Permanent Redirect</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/400\"><code>400 Bad Request</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/401\"><code>401 Unauthorized</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/402\"><code>402 Payment Required</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/403\"><code>403 Forbidden</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/404\"><code>404 Not Found</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/405\"><code>405 Method Not Allowed</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/406\"><code>406 Not Acceptable</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/407\"><code>407 Proxy Authentication Required</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/408\"><code>408 Request Timeout</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/409\"><code>409 Conflict</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/410\"><code>410 Gone</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/411\"><code>411 Length Required</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/412\"><code>412 Precondition Failed</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/413\"><code>413 Content Too Large</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/414\"><code>414 URI Too Long</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/415\"><code>415 Unsupported Media Type</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/416\"><code>416 Range Not Satisfiable</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/417\"><code>417 Expectation Failed</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/418\"><code>418 I'm a teapot</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/421\"><code>421 Misdirected Request</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/422\"><code>422 Unprocessable Entity</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/423\"><code>423 Locked</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/424\"><code>424 Failed Dependency</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/425\"><code>425 Too Early</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/426\"><code>426 Upgrade Required</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/428\"><code>428 Precondition Required</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/429\"><code>429 Too Many Requests</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/431\"><code>431 Request Header Fields Too Large</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/451\"><code>451 Unavailable For Legal Reasons</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/500\"><code>500 Internal Server Error</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/501\"><code>501 Not Implemented</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/502\"><code>502 Bad Gateway</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/503\"><code>503 Service Unavailable</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/504\"><code>504 Gateway Timeout</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/505\"><code>505 HTTP Version Not Supported</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/506\"><code>506 Variant Also Negotiates</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/507\"><code>507 Insufficient Storage</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/508\"><code>508 Loop Detected</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/510\"><code>510 Not Extended</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Status/511\"><code>511 Network Authentication Required</code></a></li></ol>\n </details>\n </li>\n <li class=\"toggle\">\n <details>\n <summary>CSP 指令</summary>\n <ol><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/base-uri\"><code>CSP: base-uri</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/block-all-mixed-content\"><code>CSP: block-all-mixed-content</code></a><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/child-src\"><code>CSP: child-src</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/connect-src\"><code>CSP: connect-src</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/default-src\"><code>CSP：default-src</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/fenced-frame-src\"><code>CSP: fenced-frame-src</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/font-src\"><code>CSP: font-src</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/form-action\"><code>CSP: form-action</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/frame-ancestors\"><code>CSP：frame-ancestors</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/frame-src\"><code>CSP: frame-src</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/img-src\"><code>CSP: img-src</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/manifest-src\"><code>CSP: manifest-src</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/media-src\"><code>CSP: media-src</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/object-src\"><code>CSP: object-src</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/prefetch-src\"><code>CSP: prefetch-src</code></a><abbr class=\"icon icon-nonstandard\" title=\"非标准。请在使用前检查跨浏览器支持。\">\n <span class=\"visually-hidden\">非标准</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/report-to\"><code>report-to</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/report-uri\"><code>CSP: report-uri</code></a><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/require-trusted-types-for\"><code>CSP: require-trusted-types-for</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/sandbox\"><code>CSP: sandbox</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/script-src\"><code>CSP: script-src</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/script-src-attr\"><code>CSP: script-src-attr</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/script-src-elem\"><code>CSP: script-src-elem</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/style-src\"><code>CSP: style-src</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/style-src-attr\"><code>CSP: style-src-attr</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/style-src-elem\"><code>CSP: style-src-elem</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/trusted-types\"><code>CSP: trusted-types</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/upgrade-insecure-requests\"><code>CSP: upgrade-insecure-requests</code></a></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Security-Policy/worker-src\"><code>CSP: worker-src</code></a></li></ol>\n </details>\n </li>\n <li class=\"toggle\">\n <details>\n <summary>CORS 错误</summary>\n <ol><li><a href=\"/zh-CN/docs/Web/HTTP/CORS/Errors/CORSDisabled\">原因：CORS disabled</a></li><li><a href=\"/zh-CN/docs/Web/HTTP/CORS/Errors/CORSAllowOriginNotMatchingOrigin\">原因：CORS header 'Access-Control-Allow-Origin' does not match 'xyz'</a></li><li><a href=\"/zh-CN/docs/Web/HTTP/CORS/Errors/CORSMissingAllowOrigin\">原因：CORS header 'Access-Control-Allow-Origin' missing</a></li><li><a href=\"/zh-CN/docs/Web/HTTP/CORS/Errors/CORSOriginHeaderNotAdded\">原因：CORS header 'Origin' cannot be added</a></li><li><a href=\"/zh-CN/docs/Web/HTTP/CORS/Errors/CORSPreflightDidNotSucceed\">原因：CORS preflight channel did not succeed</a></li><li><a href=\"/zh-CN/docs/Web/HTTP/CORS/Errors/CORSDidNotSucceed\">原因：CORS request did not succeed</a></li><li><a href=\"/zh-CN/docs/Web/HTTP/CORS/Errors/CORSExternalRedirectNotAllowed\">原因：CORS request external redirect not allowed</a></li><li><a href=\"/zh-CN/docs/Web/HTTP/CORS/Errors/CORSRequestNotHttp\">原因：CORS request not HTTP</a></li><li><a href=\"/zh-CN/docs/Web/HTTP/CORS/Errors/CORSNotSupportingCredentials\">原因：Credential is not supported if the CORS header 'Access-Control-Allow-Origin' is '*'</a></li><li><a href=\"/zh-CN/docs/Web/HTTP/CORS/Errors/CORSMethodNotFound\">原因：Did not find method in CORS header 'Access-Control-Allow-Methods'</a></li><li><a href=\"/zh-CN/docs/Web/HTTP/CORS/Errors/CORSMIssingAllowCredentials\">原因：expected 'true' in CORS header 'Access-Control-Allow-Credentials'</a></li><li><a href=\"/zh-CN/docs/Web/HTTP/CORS/Errors/CORSInvalidAllowHeader\">原因：invalid token 'xyz' in CORS header 'Access-Control-Allow-Headers'</a></li><li><a href=\"/zh-CN/docs/Web/HTTP/CORS/Errors/CORSInvalidAllowMethod\">原因：invalid token 'xyz' in CORS header 'Access-Control-Allow-Methods'</a></li><li><a href=\"/zh-CN/docs/Web/HTTP/CORS/Errors/CORSMissingAllowHeaderFromPreflight\">原因：missing token 'xyz' in CORS header 'Access-Control-Allow-Headers' from CORS preflight channel</a></li><li><a href=\"/zh-CN/docs/Web/HTTP/CORS/Errors/CORSMultipleAllowOriginNotAllowed\">原因：Multiple CORS header 'Access-Control-Allow-Origin' not allowed</a></li></ol>\n </details>\n </li>\n <li class=\"toggle\">\n <details>\n <summary>权限策略指令</summary>\n <ol><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/accelerometer\">Permissions-Policy: accelerometer</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/ambient-light-sensor\">Permissions-Policy: ambient-light-sensor</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/attribution-reporting\">Permissions-Policy: attribution-reporting</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/autoplay\">Permissions-Policy: autoplay</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/bluetooth\">Permissions-Policy: bluetooth</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/browsing-topics\">Permissions-Policy: browsing-topics</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr><abbr class=\"icon icon-nonstandard\" title=\"非标准。请在使用前检查跨浏览器支持。\">\n <span class=\"visually-hidden\">非标准</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/camera\">Permissions-Policy: camera</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/compute-pressure\">Permissions-Policy: compute-pressure</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/display-capture\">Permissions-Policy: display-capture</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/document-domain\">Permissions-Policy: document-domain</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/encrypted-media\">Permissions-Policy: encrypted-media</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/fullscreen\">Permissions-Policy: fullscreen</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/gamepad\">Permissions-Policy: gamepad</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/geolocation\">Permissions-Policy: geolocation</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/gyroscope\">Permissions-Policy: gyroscope</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/hid\">Permissions-Policy: hid</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/identity-credentials-get\">Permissions-Policy: identity-credentials-get</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/idle-detection\">Permissions-Policy: idle-detection</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/local-fonts\">Permissions-Policy: local-fonts</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/magnetometer\">Permissions-Policy: magnetometer</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/microphone\">Permissions-Policy: microphone</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/midi\">Permissions-Policy: midi</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/otp-credentials\">Permissions-Policy: otp-credentials</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/payment\">Permissions-Policy: payment</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/picture-in-picture\">Permissions-Policy: picture-in-picture</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/publickey-credentials-create\">Permissions-Policy: publickey-credentials-create</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/publickey-credentials-get\">Permissions-Policy: publickey-credentials-get</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/screen-wake-lock\">Permissions-Policy: screen-wake-lock</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/serial\">Permissions-Policy: serial</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/speaker-selection\">Permissions-Policy: speaker-selection</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/storage-access\">Permissions-Policy: storage-access</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/usb\">Permissions-Policy: usb</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/web-share\">Permissions-Policy: web-share</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/window-management\">Permissions-Policy: window-management</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Permissions-Policy/xr-spatial-tracking\">Permissions-Policy: xr-spatial-tracking</a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li></ol>\n </details>\n </li>\n <li><a href=\"/zh-CN/docs/Web/HTTP/Resources_and_specifications\">HTTP 资源与规范</a></li>\n </ol>\n","sidebarMacro":"HTTPSidebar","body":[{"type":"prose","value":{"id":null,"title":null,"isH3":false,"content":"<p><strong><code>Transfer-Encoding</code></strong> 标头指明了将<a href=\"/zh-CN/docs/Glossary/Payload_body\">有效负载体</a>安全传输给用户所采用的编码形式。</p>\n<div class=\"notecard note\">\n <p><strong>备注：</strong> <a href=\"https://zh.wikipedia.org/wiki/HTTP/2\" class=\"external\" target=\"_blank\">HTTP/2</a> 禁止使用除 HTTP/2 特有的 <code>\"trailers\"</code> 以外的所有 Transfer-Encoding 标头。HTTP 2 提供了比分块传输更有效的数据流机制，并禁止使用该标头。在 HTTP/2 中使用该标头可能会导致特定的 <code>protocol error</code>，因为 HTTP/2 协议禁止使用该标头。</p>\n</div>\n<p><code>Transfer-Encoding</code> 是一个<a href=\"/zh-CN/docs/Web/HTTP/Headers#%E9%80%90%E8%B7%B3%EF%BC%88hop-by-hop%EF%BC%89%E6%A0%87%E5%A4%B4\">逐跳传输标头</a>，即仅应用于两个节点之间的消息传递，而不是所请求的资源本身。一个多节点连接中的每一段都可以应用不同的 <code>Transfer-Encoding</code> 值。如果你想要将压缩后的数据应用于整个连接，那么请使用端到端标头 <a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Encoding\"><code>Content-Encoding</code></a>。</p>\n<p>当这个标头出现在 <a href=\"/zh-CN/docs/Web/HTTP/Methods/HEAD\"><code>HEAD</code></a> 请求的响应中，而这样的响应没有消息体，那么它其实指的是应用在相应的 <a href=\"/zh-CN/docs/Web/HTTP/Methods/GET\"><code>GET</code></a> 请求的应答的值。</p>\n<figure class=\"table-container\"><table class=\"properties\">\n <tbody>\n <tr>\n <th scope=\"row\">标头类型</th>\n <td><a href=\"/zh-CN/docs/Glossary/Request_header\">请求标头</a>、<a href=\"/zh-CN/docs/Glossary/Response_header\">响应标头</a>、<a href=\"/zh-CN/docs/Glossary/Payload_header\">有效负载标头</a></td>\n </tr>\n <tr>\n <th scope=\"row\"><a href=\"/zh-CN/docs/Glossary/Forbidden_header_name\">禁止修改的标头</a></th>\n <td>是</td>\n </tr>\n </tbody>\n</table></figure>"}},{"type":"prose","value":{"id":"语法","title":"语法","isH3":false,"content":"<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">http</span></div><pre class=\"brush: http notranslate\"><code>Transfer-Encoding: chunked\nTransfer-Encoding: compress\nTransfer-Encoding: deflate\nTransfer-Encoding: gzip\n\n// 可以列出多个值，用逗号分割\nTransfer-Encoding: gzip, chunked\n</code></pre></div>"}},{"type":"prose","value":{"id":"指令","title":"指令","isH3":false,"content":"<dl>\n <dt id=\"chunked\"><a href=\"#chunked\"><code>chunked</code></a></dt>\n <dd>\n <p>数据以一系列分块的形式进行发送。<a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Length\"><code>Content-Length</code></a> 标头在这种情况下不被发送。在每一个分块的开头需要添加当前分块的长度，以十六进制的形式表示，后面紧跟着“<code>\\r\\n</code>”，之后是分块本身，后面也是“<code>\\r\\n</code>”。终止块是一个常规的分块，不同之处在于其长度为 0。终止块后面是一个挂载（trailer），由一系列的标头（可能为空）构成。</p>\n </dd>\n <dt id=\"compress\"><a href=\"#compress\"><code>compress</code></a></dt>\n <dd>\n <p>采用 <a href=\"http://zh.wikipedia.org/wiki/LZW\" class=\"external\" target=\"_blank\">Lempel-Ziv-Welch</a>（LZW）压缩算法。这个名称来自 UNIX 系统的 <em>compress</em> 程序，该程序实现了前述算法。与已从大多数 UNIX 发行版中消失的 compress 程序一样，如今几乎没有浏览器使用这种内容编码，部分原因是专利问题（2003 年到期）。</p>\n </dd>\n <dt id=\"deflate\"><a href=\"#deflate\"><code>deflate</code></a></dt>\n <dd>\n <p>采用 <a href=\"http://zh.wikipedia.org/wiki/Zlib\" class=\"external\" target=\"_blank\">zlib</a> 结构（于 <a href=\"https://tools.ietf.org/html/rfc1950\" class=\"external\" target=\"_blank\">RFC 1950</a> 定义）和 <a href=\"https://zh.wikipedia.org/wiki/Deflate\" class=\"external\" target=\"_blank\"><em>deflate</em></a> 压缩算法（于 <a href=\"https://tools.ietf.org/html/rfc1952\" class=\"external\" target=\"_blank\">RFC 1951</a> 定义）。</p>\n </dd>\n <dt id=\"gzip\"><a href=\"#gzip\"><code>gzip</code></a></dt>\n <dd>\n <p>表示采用 <a href=\"https://zh.wikipedia.org/wiki/LZ77%E4%B8%8ELZ78#LZ77\" class=\"external\" target=\"_blank\">Lempel-Ziv coding</a>（LZ77）压缩算法，以及 32 位 CRC 校验的编码方式。这个编码方式最初由 UNIX 平台上的 <em>gzip</em> 程序采用。出于兼容性的考虑，HTTP/1.1 标准提议支持这种编码方式的服务器应该识别作为别名的 <code>x-gzip</code> 指令。</p>\n </dd>\n</dl>"}},{"type":"prose","value":{"id":"示例","title":"示例","isH3":false,"content":""}},{"type":"prose","value":{"id":"分块编码","title":"分块编码","isH3":true,"content":"<p>分块编码主要应用于如下场景，即要传输大量的数据，但是在请求在没有被处理完之前响应的长度是无法获得的。例如，当需要用从数据库中查询获得的数据生成一个大的 HTML 表格的时候，或者需要传输大量的图片的时候。一个分块响应形式如下：</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">http</span></div><pre class=\"brush: http notranslate\"><code>HTTP/1.1 200 OK\nContent-Type: text/plain\nTransfer-Encoding: chunked\n\n7\\r\\n\nMozilla\\r\\n\n11\\r\\n\nDeveloper Network\\r\\n\n0\\r\\n\n\\r\\n\n</code></pre></div>"}},{"type":"specifications","value":{"title":"规范","id":"规范","isH3":false,"specifications":[{"bcdSpecificationURL":"https://httpwg.org/specs/rfc9112.html#field.transfer-encoding","title":"HTTP/1.1"}],"query":"http.headers.Transfer-Encoding"}},{"type":"browser_compatibility","value":{"title":"浏览器兼容性","id":"浏览器兼容性","isH3":false,"query":"http.headers.Transfer-Encoding"}},{"type":"prose","value":{"id":"参见","title":"参见","isH3":false,"content":"<ul>\n <li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Accept-Encoding\"><code>Accept-Encoding</code></a></li>\n <li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Encoding\"><code>Content-Encoding</code></a></li>\n <li><a href=\"/zh-CN/docs/Web/HTTP/Headers/Content-Length\"><code>Content-Length</code></a></li>\n <li>规范挂载使用的标头字段：<a href=\"/zh-CN/docs/Web/HTTP/Headers/TE\"><code>TE</code></a>（请求）和 <a href=\"/zh-CN/docs/Web/HTTP/Headers/Trailer\"><code>Trailer</code></a>（响应）。</li>\n <li><a href=\"https://zh.wikipedia.org/wiki/%E5%88%86%E5%9D%97%E4%BC%A0%E8%BE%93%E7%BC%96%E7%A0%81\" class=\"external\" target=\"_blank\">分块传输编码</a></li>\n</ul>"}}],"toc":[{"text":"语法","id":"语法"},{"text":"指令","id":"指令"},{"text":"示例","id":"示例"},{"text":"规范","id":"规范"},{"text":"浏览器兼容性","id":"浏览器兼容性"},{"text":"参见","id":"参见"}],"summary":"Transfer-Encoding 标头指明了将有效负载体安全传输给用户所采用的编码形式。","popularity":0,"modified":"2024-07-30T07:03:28.000Z","other_translations":[{"locale":"de","title":"Transfer-Encoding","native":"Deutsch"},{"locale":"en-US","title":"Transfer-Encoding","native":"English (US)"},{"locale":"es","title":"Transfer-Encoding","native":"Español"},{"locale":"ja","title":"Transfer-Encoding","native":"日本語"},{"locale":"ko","title":"Transfer-Encoding","native":"한국어"},{"locale":"pt-BR","title":"Transfer-Encoding","native":"Português (do Brasil)"}],"pageType":"unknown","source":{"folder":"zh-cn/web/http/headers/transfer-encoding","github_url":"https://github.com/mdn/translated-content/blob/main/files/zh-cn/web/http/headers/transfer-encoding/index.md","last_commit_url":"https://github.com/mdn/translated-content/commit/cb205543207be34e1fa827abf093c73114848265","filename":"index.md"},"short_title":"Transfer-Encoding","parents":[{"uri":"/zh-CN/docs/Web","title":"面向开发者的 Web 技术"},{"uri":"/zh-CN/docs/Web/HTTP","title":"HTTP"},{"uri":"/zh-CN/docs/Web/HTTP/Headers","title":"HTTP 标头"},{"uri":"/zh-CN/docs/Web/HTTP/Headers/Transfer-Encoding","title":"Transfer-Encoding"}],"pageTitle":"Transfer-Encoding - HTTP | MDN","noIndexing":false}}</script></body></html>