diff --git a/cfg/ngx/fw.op.fo.conf b/cfg/ngx/fw.op.fo.conf
index 5ee3818..e15619d 100644
--- a/cfg/ngx/fw.op.fo.conf
+++ b/cfg/ngx/fw.op.fo.conf
@@ -70,7 +70,7 @@ server {
     }
 
     # normal mode: /shortcode
-    location ~ ^/(\w+) {
+    location ~ ^/\w+ {
         default_type  application/json;
         proxy_hide_header Content-Location;
         add_header Content-Location  /rpc/$upstream_http_content_location;