[warn] The first pre_if matched and its result is b error_log /tmp/te"st.log error; pid /tmp/tes't.pid; events { use epoll; } test "$unknownvarabcx"; the pre_if matched b; events events\ \{; http { types { image/x-jng jng; image/x-ms-bmp bmp; image/svg+xml svg svgz; } location ~ \.php$ { something; } server { if "x" { } } document_root "/var/tmp/\$va\"r .log"; server { listen 0.0.0.0:80 tls; description abc; not_description $something; server_name blicky.net www.blicky.net more.blicky.net; cert_something "/etc/nginx/certs/blicky.net.crt"; hi $something; } }