always test root existence for access_log with variables
diff --git a/src/http/modules/ngx_http_static_module.c b/src/http/modules/ngx_http_static_module.c
index f5d6971..ce2f0fc 100644
--- a/src/http/modules/ngx_http_static_module.c
+++ b/src/http/modules/ngx_http_static_module.c
@@ -140,6 +140,8 @@
         return rc;
     }
 
+    r->root_tested = 1;
+
     ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, "http static fd: %d", of.fd);
 
     if (of.is_dir) {