Review HTTP response headers and restrict browser features an application does not need, such as camera, microphone, and location access. Guide Permissions-Policy settings that limit what attackers could use if the site is compromised.
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Use when reviewing HTTP response headers for defense-in-depth security hardening on any web application.
安装前可以查看交给 AI 代理的指令内容。
A site compromised by XSS that has unrestricted camera and microphone access can silently record the user. Permissions-Policy limits which browser APIs are available, reducing attacker capabilities even after a successful injection.
Permissions-Policy to disable browser features your site does not use (camera, microphone, geolocation, payment)Permissions-Policy: camera=(), microphone=(), geolocation=() — empty () means denied to allFeature-Policy — the old syntax is deprecated and only supported in older browsersCheck whether the server sends a Permissions-Policy header and review which browser features are allowed or denied. Identify any powerful features (camera, microphone, geolocation, payment, USB) that are enabled but not required by the application.
Add a Permissions-Policy header that disables all browser features your site does not use. Start with camera=(), microphone=(), geolocation=() and expand the list based on what the application actually needs.
Explain what the Permissions-Policy header does, how it restricts browser APIs like camera and geolocation, and why disabling unused features improves security.
Review server config, headers, forms, and integration points related to Set a Permissions-Policy header. Flag exact responses, cookies, or browser behaviors that violate the rule, and verify them against the effective production-like response.
For full implementation details, code examples, and framework-specific guidance,
see references/rule.md.
Rule page: https://frontendchecklist.io/rules/security/permissions-policy
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Create and review custom 404 pages that help visitors recover from broken or moved links through search and navigation. Check the rendered page and HTTP response so missing content returns a proper 404 status.
中文简介正在准备中。当前显示英语简介。
Audit or create a dedicated About page that explains a website’s purpose and identifies its people or organization. Review the rendered output and supporting information, including expertise and contact details, to find gaps.
中文简介正在准备中。当前显示英语简介。
Review and add automated accessibility checks for components, pages, and continuous integration workflows. Use axe-based tools to detect structural and attribute issues, while identifying checks that still need keyboard or screen reader testing.
中文简介正在准备中。当前显示英语简介。
Review sign-in, registration, multi-factor authentication, and account recovery for accessibility barriers. Find blocked paste, difficult code entry, and inaccessible backup methods, then suggest authentication paths that support password managers, autofill, or device approval.
中文简介正在准备中。当前显示英语简介。
Review form errors, success messages, and live updates so screen reader users receive important notifications. Check the HTML delivered to the browser, announcement settings, display duration, and dismissal controls, then identify specific elements that need changes.
中文简介正在准备中。当前显示英语简介。
Review HTML tables so screen reader users can understand how headers and data relate. Check header markup, table descriptions, and merged cells, then identify specific fixes and ways to verify them.
中文简介正在准备中。当前显示英语简介。