proxy_hide_header X-Powered-By;

add_header Content-Security-Policy "default-src 'self'; base-uri 'self'; frame-ancestors 'self'; object-src 'none'; form-action 'self'; connect-src 'self' https: wss:; img-src 'self' data: https:; font-src 'self' data:; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline'" always;
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 "geolocation=(),midi=(),sync-xhr=(),microphone=(),camera=(),magnetometer=(),gyroscope=(),fullscreen=(self),payment=()" always;
add_header X-Permitted-Cross-Domain-Policies "none" always;