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> 2 ProxyRequests Off 3 <Proxy *> 4 Order deny,allow 5 Allow from all 6 </Proxy> 7 ProxyPass / http://localhost:8081/ 8 ProxyPassReverse / …