diff --git a/configs/default.vcl b/configs/default.vcl
index cca3ef9..71e425c 100644
--- a/configs/default.vcl
+++ b/configs/default.vcl
@@ -2,16 +2,19 @@ backend default {
 .host = "127.0.0.1";
 .port = "8080";
 }
+
 # Drop any cookies sent to Wordpress.
+# except when previewing
 sub vcl_recv {
-    if (!(req.url ~ "wp-(login|admin)")) {
+    if ( !(req.url ~ "(wp-login|wp-admin|preview=true)") ) {
         unset req.http.cookie;
     }
 }
 
 # Drop any cookies Wordpress tries to send back to the client.
+# except when previewing
 sub vcl_fetch {
-    if (!(req.url ~ "wp-(login|admin)")) {
+    if ( !(req.url ~ "(wp-login|wp-admin|preview=true)") ) {
         unset beresp.http.set-cookie;
     }
 }
\ No newline at end of file