apache/templates/vhost_reverse_proxy.conf

        ProxyRequests Off
        ProxyPreserveHost On

        <Proxy *>
            Order deny,allow
            Allow from all
        </Proxy>
<%- if url =~ /^https/ -%>
        SSLProxyEngine On
<%- end -%>
        ProxyPass / <%= url %>
        ProxyPassReverse / <%= url %>

1	ProxyRequests Off
2	ProxyPreserveHost On
3
4	<Proxy *>
5	Order deny,allow
6	Allow from all
7	</Proxy>
8	<%- if url =~ /^https/ -%>
9	SSLProxyEngine On
10	<%- end -%>
11	ProxyPass / <%= url %>
12	ProxyPassReverse / <%= url %>
13