V2EX feature-policy

Feature-Policy

释义 Definition

Feature-Policy(已逐步被 Permissions-Policy 取代)指一种用于网页安全与隐私控制的机制/HTTP 响应头(以及相应的策略语法),用来限制或允许页面及其嵌入内容(如 iframe)使用某些浏览器功能与 API(例如摄像头、麦克风、地理位置等)。

发音 Pronunciation

/fitr plsi/
/fit plsi/

例句 Examples

The site uses Feature-Policy to block the camera.
该网站使用 Feature-Policy 来禁止访问摄像头。

By setting a strict Feature-Policy, the developer prevented third-party iframes from accessing geolocation and microphone APIs, reducing privacy risk.
通过设置严格的 Feature-Policy,开发者阻止第三方 iframe 访问地理位置与麦克风 API,从而降低隐私风险。

词源 Etymology

feature(功能、特性)+ policy(策略、规则)组成,字面意思是“对功能的策略管理”。在 Web 平台语境中,它专指用策略来“开/关”浏览器能力的做法;后来规范与实现逐渐转向更明确的名称 Permissions-Policy

相关词Related Words

文献与作品出现 Notable Works

  • W3C WebAppSec / Permissions Policy(原 Feature Policy)规范(标准文档中系统定义与使用该术语)
  • MDN Web Docs(在安全与响应头相关文档中大量提及 Feature-Policy/Permissions-Policy)
  • Google Developers / Chromium 文档与博客(在功能限制、隐私与权限控制的技术文章中出现)
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