nginx.conf

# Map request Origin to allowed CORS origin.
# IMPORTANT: Before deploying to production, replace PRODUCTION_DOMAIN with your actual
# production domain (e.g. your-app.ondigitalocean.app or your custom domain).
# Do NOT use wildcard (*) in production.
map $http_origin $cors_origin {
    default "";
    "~^https://PRODUCTION_DOMAIN$" $http_origin;
}

server {
    listen 8080;
    server_name localhost;
    root /web/dist;
    index index.html;

    # Security headers
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;
    add_header Permissions-Policy "camera=(), microphone=(), geolocation=()" always;
    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'" always;

    # Gzip compression
    gzip on;
    gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;

    # SPA routing - fallback to index.html for client-side routes
    location / {
        try_files $uri $uri/ /index.html;
    }

    # Proxy API requests to Spring Boot backend
    # /api/imoveis -> http://localhost:8081/imoveis (strips the /api prefix)
    location /api/ {
        # Deixando o backend (Spring Security) lidar com todo o CORS preflight e headers
        proxy_pass http://localhost:8081/;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }

    # Cache static assets
    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2)$ {
        expires 1y;
        add_header Cache-Control "public, immutable";
    }
}