17 lines
1.3 KiB
Plaintext
17 lines
1.3 KiB
Plaintext
# Shared security headers. `include`d in the server block AND in every location
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# that sets its own add_header (because add_header in a location REPLACES, not
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# merges, inherited headers — the classic nginx footgun).
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#
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# HSTS is set here at the origin (travels through the tunnel to the client) — host-scoped,
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# NO includeSubDomains / preload (the *.bztmon.com wildcard points elsewhere, so forcing HTTPS
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# on every subdomain would be dangerous). HTTP->HTTPS upgrade is handled by Cloudflare.
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add_header Strict-Transport-Security "max-age=31536000" always;
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add_header Content-Security-Policy "default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' data:; font-src 'self'; connect-src 'self'; worker-src 'self'; manifest-src 'self'; object-src 'none'; base-uri 'self'; form-action 'self'; frame-ancestors 'none'; upgrade-insecure-requests" always;
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add_header X-Content-Type-Options "nosniff" always;
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add_header X-Frame-Options "DENY" always;
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add_header Referrer-Policy "strict-origin-when-cross-origin" always;
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add_header Permissions-Policy "camera=(), microphone=(), geolocation=(), payment=(), usb=(), interest-cohort=()" always;
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add_header Cross-Origin-Opener-Policy "same-origin" always;
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add_header Cross-Origin-Resource-Policy "same-origin" always;
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