diff --git a/cfg/ngx/fw.op.fo.conf b/cfg/ngx/fw.op.fo.conf
index 14a2b5c..5ee3818 100644
--- a/cfg/ngx/fw.op.fo.conf
+++ b/cfg/ngx/fw.op.fo.conf
@@ -59,7 +59,7 @@ server {
         error_page 404 = @myownredirect;
     }
 
-    # debug url, /dbg/string
+    # debug url: /dbg/string
     location ~ ^/dbg/(\w+) {
         default_type  application/json;
         proxy_hide_header Content-Location;
@@ -69,7 +69,7 @@ server {
         proxy_pass http://postgrest/rpc/fwd?p_shortcode=$1&p_dbg=true;
     }
 
-    # support /string url style
+    # normal mode: /shortcode
     location ~ ^/(\w+) {
         default_type  application/json;
         proxy_hide_header Content-Location;
@@ -77,7 +77,7 @@ server {
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         proxy_http_version 1.1;
         proxy_method post;
-        proxy_pass http://postgrest/rpc/fwd?p_shortcode=$1;
+        proxy_pass http://postgrest/rpc/fwd;
     }
 
 }