I use a NPM registry proxy in Sonatype Nexus 3 behind an Apache2 as reverse proxy. With the "standard" Apache2 VirtualHost configuration 1<VirtualHost:80> 2ProxyRequests Off 3<Proxy *> 4Order deny,allow 5Allow from all 6</Proxy> 7ProxyPass / http://localhost:8081/ 8ProxyPassReverse / …