Add Content Security Policy and missing security headers - #21
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Adds a shared securityHeaders object applied to both the Vite dev server and vite preview server. Also introduces serve.json so that `npm run serve` (the `serve` static server) sends the same headers in production. New headers beyond the existing COOP/COEP: - Content-Security-Policy: locks resources to same-origin with targeted exceptions for WASM eval, blob workers (FFmpeg/OpenCV), blob media URLs, inline styles (set via JS element.style throughout the UI), and data: icons. - X-Content-Type-Options: nosniff — prevents MIME-type sniffing attacks. - X-Frame-Options: DENY — clickjacking protection (belt-and-suspenders with the frame-ancestors CSP directive). https://claude.ai/code/session_016gFzZ4udLP6DGt4fwqN2wG
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Adds a shared securityHeaders object applied to both the Vite dev server
and vite preview server. Also introduces serve.json so that
npm run serve(the
servestatic server) sends the same headers in production.New headers beyond the existing COOP/COEP:
exceptions for WASM eval, blob workers (FFmpeg/OpenCV), blob media URLs,
inline styles (set via JS element.style throughout the UI), and data: icons.
the frame-ancestors CSP directive).
https://claude.ai/code/session_016gFzZ4udLP6DGt4fwqN2wG