V2EX set-cookie

Set-Cookie

Definition / 定义

Set-Cookie:HTTP 响应头字段,用于让浏览器(客户端)保存一条 Cookie(如会话标识、偏好设置等),并在后续对同一站点/域的请求中按规则自动带上(通过 Cookie 请求头发送)。常见属性包括 Expires/Max-Age(有效期)、PathDomainSecureHttpOnlySameSite 等。

Pronunciation / 发音

/st kki/

Examples / 例句

The server sent a Set-Cookie header to keep me logged in.
服务器发送了一个 Set-Cookie 响应头,让我保持登录状态。

After the user authenticates, the application returns Set-Cookie: session_id=...; HttpOnly; Secure; SameSite=Lax, which reduces the risk of scripts stealing the session and helps mitigate cross-site request attacks.
用户完成认证后,应用返回 Set-Cookie: session_id=...; HttpOnly; Secure; SameSite=Lax,这能降低脚本窃取会话的风险,并有助于缓解跨站请求相关攻击。

Etymology / 词源

该词由 set(设置)+ cookie(“小甜饼”一词在计算机领域借用为“浏览器保存的一小段数据”) 组合而来。Set-Cookie 作为 HTTP 头字段名称,字面意思就是“设置(一条)Cookie”,用于指示客户端存储并管理这段状态信息。cookie 在计算机语境的流行与早期浏览器/网络协议对“持久化小数据块”的比喻性命名有关。

Related Words / 相关词

Notable Works / 作品例

  • **RFC 6265: HTTP State Management Mechanism**(系统定义了 Cookie 与 Set-Cookie/Cookie 头的行为与规则)
  • **MDN Web Docs: Set-Cookie**(面向开发者的权威参考与示例说明)
  • **HTTP: The Definitive Guide**(《HTTP权威指南》;在讲解状态管理与 Cookie 时会涉及 Set-Cookie
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