Enable Multiple port requests of Apache2 Proxypass with Node JS via Browser.

Apache2 Virtual Host

ServerName test.com
ProxyPass / http://localhost:8000
ProxyPassReverse /http://localhost:8000

Open Chrome Browser enter test.com is Working

Open Chrome Browser enter test.com:8000 is not Working

How to make it work for both test.com:8000 and test.com at the same tme ?