Reverse Proxy DD-WRT through Apache

ddwrt.conf

##################################
# ddwrt.conf
#
#    Reverse Proxy DD-wrt through Apache
#
#  Usage:
#
#    Use DDwrtProxyHTTP /ddwrt 192.168.1.1 www.andydoestech.com
#
#       ^---Makes dd-wrt accessble via http://www.andydoestech.com/ddwrt/
#
#    Use DDwrtProxyHTTPS /ddwrt 192.168.1.1 www.andydoestech.com
#
#       ^---Same as previous, except makes it accessible via https://www.andydoestech.com/ddwrt/
#
##################################


<Macro DDwrtProxyHTTP $proxypath $ddwrtip $domain>
  <Location $proxypath>
    ProxyPass http://$ddwrtip
    ProxyPassReverse http://$ddwrtip
    RequestHeader unset referer

    SetOutputFilter INFLATE;SUBSTITUTE;DEFLATE

    Substitute "s|return \"/ttgraph.cgi|return \"/local/gw/ttgraph.cgi|in"
    Substitute "s|src=\"/graph_if.svg|src=\"/local/gw/graph_if.svg|in"
  </Location>

  RewriteEngine On
  RewriteCond %{REQUEST_URI} $proxypath$
  RewriteRule ^(.*)$ http://$domain$proxypath/ [R,L]
</Macro>

<Macro DDwrtProxyHTTPS $proxypath $ddwrtip $domain>
  <Location $proxypath>
    ProxyPass http://$ddwrtip
    ProxyPassReverse http://$ddwrtip
    RequestHeader unset referer

    SetOutputFilter INFLATE;SUBSTITUTE;DEFLATE

    Substitute "s|return \"/ttgraph.cgi|return \"/local/gw/ttgraph.cgi|in"
    Substitute "s|src=\"/graph_if.svg|src=\"/local/gw/graph_if.svg|in"
  </Location>

  RewriteEngine On
  RewriteCond %{REQUEST_URI} $proxypath$
  RewriteRule ^(.*)$ https://$domain$proxypath/ [R,L]
</Macro>