diff --git a/templates/varnish4-vcl.erb b/templates/varnish4-vcl.erb
index 794b244..7f87716 100644
--- a/templates/varnish4-vcl.erb
+++ b/templates/varnish4-vcl.erb
@@ -34,9 +34,9 @@ sub vcl_recv {
 <%- end -%>
 <%- if @logrealip -%>
   if (req.http.X-Forwarded-For) {
-     std.log("RealIP:" + req.http.X-Forwarded-For); 
+     std.log("RealIP:" + req.http.X-Forwarded-For);
   } else {
-     std.log("RealIP:" + client.ip); 
+     std.log("RealIP:" + client.ip);
   }
 <%- end -%>
 
@@ -64,7 +64,7 @@ sub vcl_recv {
     # Static file cache
     ((req.url ~ "(?i)\.(jpg|jpeg|gif|png|tiff|tif|svg|swf|ico|css|kss|js|vsd|doc|ppt|pps|xls|pdf|mp3|mp4|m4a|ogg|mov|avi|wmv|sxw|zip|gz|bz2|tar|rar|odc|odb|odf|odg|odi|odp|ods|odt|sxc|sxd|sxi|sxw|dmg|torrent|deb|msi|iso|rpm|jar|class|flv|exe)$")||
     # Plone images cache
-    (req.url ~ "(?i)(image|imagem_large|image_preview|image_mini|image_thumb|image_tile|image_icon|imagem_listing)$")) && 
+    (req.url ~ "(?i)(image|imagem_large|image_preview|image_mini|image_thumb|image_tile|image_icon|imagem_listing)$")) &&
     # Plone resource editor
     (req.url !~ "(?i)\@\@plone\.resourceeditor\.getfile\?path\=")
 <%- end -%>
@@ -107,7 +107,7 @@ sub vcl_recv {
       return (synth(405, "Not allowed."));
     }
     ban(" req.url == " + req.url);
-    set req.url = regsuball(req.url,"80","443"); 
+    set req.url = regsuball(req.url,"80","443");
     set req.url = regsuball(req.url,"http","https");
     ban(" req.url == " + req.url);
     # Throw a synthetic page so the
@@ -230,6 +230,9 @@ sub vcl_deliver {
 <%- if @functions['vcl_deliver'] -%>
   <%= @functions.delete('vcl_deliver') %>
 <%- else -%>
+<%- if @functions['vcl_deliver_prepend'] -%>
+  <%= @functions.delete('vcl_deliver_prepend') %>
+<%- end -%>
   if (obj.hits > 0) {
     set resp.http.X-Cache = "HIT";
   } else {
@@ -247,6 +250,9 @@ sub vcl_deliver {
   }
   <%-end-%>
   <%-end-%>
+  <%- if @functions['vcl_deliver_append'] -%>
+    <%= @functions.delete('vcl_deliver_append') %>
+  <%- end -%>
   <%-end-%>
 }