# Security headers for bchanot.fr — included at server level AND in every
# location that declares its own add_header: nginx add_header inheritance
# is all-or-nothing (one add_header in a location drops ALL inherited
# headers), so each such location must re-include this file.
# HSTS is intentionally NOT here — it belongs to the TLS-terminating proxy.

add_header X-Content-Type-Options "nosniff" always;
add_header X-Frame-Options "SAMEORIGIN" always;
add_header Referrer-Policy "strict-origin-when-cross-origin" always;
add_header Permissions-Policy "geolocation=(), microphone=(), camera=(), payment=()" always;
# CSP: inline CSS allowed (style attributes in the CV + single-file convention);
# the inline script is HASH-pinned (no script unsafe-inline). INVARIANT: after
# ANY edit to index.html's inline <script>, recompute the hash (command in
# CLAUDE.md) and update it here — a stale hash silently disables the JS.
add_header Content-Security-Policy "default-src 'self'; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; font-src 'self' https://fonts.gstatic.com; script-src 'self' 'sha256-Al1M34KxI6Ye5Viu6aO//7CYyaLzqtpG9GX95FFlSOY='; img-src 'self' data:; base-uri 'self'; form-action 'self'; frame-ancestors 'self'" always;