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Add CSP, SRI, and auto-hash deploy pipeline

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- Content Security Policy via <meta> tag (blocks exfiltration to foreign domains)
- Subresource Integrity on all static and dynamically loaded scripts
- Nginx security headers snippet (HSTS, CSP, frame-ancestors on all responses)
- Auto-minify and SRI hash update in deploy.sh (prevents stale hashes)
This commit is contained in:
Alexander Schmidt
2026-03-27 07:51:01 +01:00
parent 2a3cc5682c
commit 83e7d43a74
6 changed files with 71 additions and 7 deletions
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12
nginx-security-headers.conf Normal file
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# Include this in your nginx server block:
# include /path/to/nginx-security-headers.conf;
#
# This ensures ALL responses (HTML, CSS, JS, fonts) get security headers,
# not just PHP/API responses.
add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload" always;
add_header X-Content-Type-Options "nosniff" always;
add_header X-Frame-Options "DENY" always;
add_header Referrer-Policy "no-referrer" always;
add_header Permissions-Policy "geolocation=(), microphone=(), camera=()" always;
add_header Content-Security-Policy "default-src 'none'; script-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' data: blob:; font-src 'self'; connect-src 'self'; form-action 'none'; frame-ancestors 'none'; base-uri 'none'" always;