rapid-cdn: c->h: Implement prefer-gzip-encoding-to-backend

software/rapid-cdn/buildout.hash.cfg

@@ -38,7 +38,7 @@ md5sum = cba4d995962f7fbeae3f61c9372c4181
 
 [template-frontend-haproxy-configuration]
 _update_hash_filename_ = templates/frontend-haproxy.cfg.in
-md5sum = 59d9ad255c00c67c6181f1929bf333c6
+md5sum = b1cd67d96cce91b5173ce09a9fdc2ac8
 
 [template-frontend-haproxy-crt-list]
 _update_hash_filename_ = templates/frontend-haproxy-crt-list.in

software/rapid-cdn/templates/frontend-haproxy.cfg.in

@@ -118,6 +118,9 @@ backend {{ slave_instance['slave_reference'] }}-{{ scheme }}
   http-request del-header Cache-Control
   http-request del-header Pragma
 {%-         endif %}
+{%-         if slave_instance['prefer-gzip-encoding-to-backend'] %}
+  http-request set-header Accept-Encoding gzip if { hdr(Accept-Encoding) -m sub gzip }
+{%-         endif %}
 {%-         if info_dict['path'] %}
   http-request set-path {{ info_dict['path'] }}%[path]
 {%-         endif %} {# if info_dict['path'] #}