add some comments

Kong · Nov 30, 2023 · 7ee8fcd · 7ee8fcd
1 parent cb2626c
commit 7ee8fcd
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/kong/error_handlers.lua b/kong/error_handlers.lua
@@ -59,6 +59,9 @@ return function(ctx)
   local status = kong.response.get_status()
   local message = get_body(status)
 
+  -- Nginx 494 status code is used internally when the client sends
+  -- too large or invalid HTTP headers. Kong is obliged to convert
+  -- it back to `400 Bad Request`.
   if status == 494 then
     status = 400
   end