add white method

@@ -84,6 +84,13 @@ end
 
   --check is in white ip list
 function is_white()
+
+  -- we must ignore mthod : app.graphic.img.  this is app toast for user verified
+  local method = http_request.get_method() 
+  if method and method == "app.graphic.img" then
+    return true
+  end
+
   if  limit_ip_config then
     local white_ips_length=#limit_ip_config.white_ips
     if white_ips_length >0 then