From d01c2fd2c8a6fe64d90d908de74b65cddd9ec7ec Mon Sep 17 00:00:00 2001
From: Samuel Williams <samuel.williams@oriontransfer.co.nz>
Date: Wed, 26 Jan 2022 11:13:25 +1300
Subject: [PATCH] Update lib/rack/mock.rb

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

diff --git a/lib/rack/mock.rb b/lib/rack/mock.rb
index b9899efd7..d9c8a9cef 100644
--- a/lib/rack/mock.rb
+++ b/lib/rack/mock.rb
@@ -188,7 +188,7 @@ def initialize(status, headers, body, errors = nil)
       if errors
         @errors = errors.string if errors.respond_to?(:string)
       else
-        @errors = nil
+        @errors = ""
       end
 
       super(body, status, headers)