Archiva, tomcat 7 and apache reverse proxy configuration

I installed and configured the Archiva 2.2.0 on tomcat 7 using the war file and so, all features work perfectly when I access the application directly by the IP and port .

However , when I access the application through apache server redirecting (reverse proxy), administrative functions are not displayed. Below are the reverse proxy configurations.

<VirtualHost *:80>

ServerName archiva.company.com
ProxyRequests Off
ProxyPreserveHost On

<Proxy *>
Order deny,allow
Allow from all
</Proxy>

ProxyPass / http://localhost:8075/archiva/
ProxyPassReverse / http://localhost:8075/archiva/

</VirtualHost>