Fix · Express / Node
Fix “Clickjacking protection” on Express / Node
Add: X-Frame-Options: DENY (or CSP 'frame-ancestors none').
res.setHeader("X-Frame-Options", "DENY");Verify the fix
Re-run the Clickjacking protection check after deploying. Test config changes in staging first and keep a rollback: a wrong header can break a site faster than a missing one.
Other stacks: nginx · Apache · Caddy · Cloudflare