Review HTML and JSX links that open new tabs, identify missing rel attributes, and add protective values. The skill also explains how these values prevent changes to the original tab and control referral information.
한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.
Use when reviewing HTML or JSX for anchor elements with target='_blank' to verify rel='noopener noreferrer' is present.
설치하기 전에 에이전트에게 전달되는 지시 내용을 확인할 수 있습니다.
A malicious site opened via target='_blank' can use window.opener.location to silently redirect your original tab to a phishing page — the user switches back and sees a fake login screen on what appears to be your domain.
rel="noopener noreferrer" to any <a target="_blank"> linknoopener prevents the new tab from accessing window.opener and redirecting your pagenoreferrer additionally suppresses the Referer header sent to the destination sitenoopener for cross-origin _blank links, but explicit markup is required for older browsers and same-origin linksjsx-a11y/anchor-is-valid and eslint-plugin-security can enforce this automaticallyFind all anchor elements with target='_blank' in the HTML and JSX source. Verify each one includes rel='noopener noreferrer' (or at minimum rel='noopener'). Flag any external links opening in a new tab that are missing this attribute.
Add rel='noopener noreferrer' to all <a target='_blank'> elements. In React/JSX this is rel="noopener noreferrer". Configure an ESLint rule to prevent this from recurring.
Explain the reverse tabnapping attack enabled by window.opener, how rel='noopener' and rel='noreferrer' prevent it, and the difference between the two values.
Review server config, headers, forms, and integration points related to External Link Security. 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/new-tab
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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.
한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.
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.
한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.
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.
한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.
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.
한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.
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.
한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.
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.
한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.