server {
    listen 80;
    server_name _;
    root /usr/share/nginx/html;
    index index.html;

    gzip on;
    gzip_types text/css application/javascript application/json image/svg+xml;

    # Fingerprinted build output can be cached forever.
    location /static/ {
        try_files $uri =404;
        add_header Cache-Control "public, max-age=31536000, immutable";
    }

    # Exchangeable graphics (public/assets) are not fingerprinted; revalidate them
    # so replaced files show up immediately.
    location /assets/ {
        try_files $uri =404;
        add_header Cache-Control "no-cache";
    }

    location = /config.js {
        add_header Cache-Control "no-store";
    }

    location = /index.html {
        add_header Cache-Control "no-cache";
    }

    # Single page app fallback.
    location / {
        try_files $uri $uri/ /index.html;
    }
}