macports mod_proxy configuration gives error AH01144 No protocol handler was valid for the URL .. scheme http
After try and error i found the relevant set:
   rcsdiff httpd.conf
===================================================================
RCS file: RCS/httpd.conf,v
retrieving revision 1.1
diff -r1.1 httpd.conf
109,110c109,110
&lt; #LoadModule xml2enc_module lib/apache2/modules/mod_xml2enc.so
&lt; #LoadModule proxy_html_module lib/apache2/modules/mod_proxy_html.so
---
&gt; LoadModule xml2enc_module lib/apache2/modules/mod_xml2enc.so
&gt; LoadModule proxy_html_module lib/apache2/modules/mod_proxy_html.so
125c125
&lt; #LoadModule proxy_module lib/apache2/modules/mod_proxy.so
---
&gt; LoadModule proxy_module lib/apache2/modules/mod_proxy.so
128c128
&lt; #LoadModule proxy_http_module lib/apache2/modules/mod_proxy_http.so
---
&gt; LoadModule proxy_http_module lib/apache2/modules/mod_proxy_http.so