/usr/ is in node-proxy-addr 1.0.3-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/nodejs/
/usr/lib/nodejs/proxy-addr/
/usr/lib/nodejs/proxy-addr/node_modules/
/usr/lib/nodejs/proxy-addr/node_modules/forwarded/
/usr/lib/nodejs/proxy-addr/node_modules/forwarded/package.json
/usr/lib/nodejs/proxy-addr/node_modules/forwarded/index.js
/usr/lib/nodejs/proxy-addr/package.json
/usr/lib/nodejs/proxy-addr/index.js
/usr/share/
/usr/share/doc/
/usr/share/doc/node-proxy-addr/
/usr/share/doc/node-proxy-addr/README.md
/usr/share/doc/node-proxy-addr/copyright
/usr/share/doc/node-proxy-addr/changelog.Debian.gz
/usr/share/doc/node-proxy-addr/HISTORY.md.gz