Problem:
- nginx serves blog.html as static file, bypassing Express middleware
- setCsrfToken middleware never runs
- No CSRF cookie set
- Newsletter subscription fails with 403 Forbidden
Root cause:
nginx config: 'try_files $uri @proxy' serves static files directly
Location: /etc/nginx/sites-available/tractatus (line 54)
Solution:
1. blog.js now fetches CSRF token via /api/csrf-token on page load
2. getCsrfToken endpoint now creates token if missing (for static pages)
3. Newsletter form uses fetched token for subscription
Testing:
✅ Local test: CSRF token fetched successfully
✅ Newsletter subscription: Creates record in database
✅ Verified: test-fix@example.com subscribed via curl test
Impact:
- Newsletter subscriptions now work on production
- Fix applies to all static HTML pages (blog.html, etc.)
- Maintains CSRF protection security
Files:
- public/js/blog.js: Added fetchCsrfToken() + use in newsletter form
- src/middleware/csrf-protection.middleware.js: Enhanced getCsrfToken()
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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