diff --git a/cfg/ngx/wa.fo.conf b/cfg/ngx/wa.fo.conf
index 182c754..79ee342 100644
--- a/cfg/ngx/wa.fo.conf
+++ b/cfg/ngx/wa.fo.conf
@@ -53,8 +53,8 @@ server {
         error_page 404 = @myownredirect;
     }
 
-    # enable maintenance mode, as index.html on the root is used when the postgrest proxy is being maintained
-    #location ~ ^/(index.html) {
+    # maintenance mode, as index.html on the root is used when the postgrest proxy is being maintained
+    #location ~ ^/(index.html|[A-Za-z0-9]+) {
     #}
 
     # access to certain files