From c382e35680ab55754e6d43749096f50a6d27c01a Mon Sep 17 00:00:00 2001
From: Samuel Williams <samuel.williams@oriontransfer.co.nz>
Date: Tue, 17 Jan 2023 10:45:49 +1300
Subject: [PATCH] Set `cause: error.cause`.

---
 lib/rack/request.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/rack/request.rb b/lib/rack/request.rb
index c28e33c19..40922a219 100644
--- a/lib/rack/request.rb
+++ b/lib/rack/request.rb
@@ -497,7 +497,7 @@ def GET
       # multipart/form-data.
       def POST
         if error = get_header(RACK_REQUEST_FORM_ERROR)
-          raise error.class, error.message, cause: error
+          raise error.class, error.message, cause: error.cause
         end
 
         begin