From 975ccac7e56dcd765cb102016b97ef13d15feba8 Mon Sep 17 00:00:00 2001
From: James Tucker <jftucker@gmail.com>
Date: Fri, 18 Jul 2014 15:43:21 -0700
Subject: Fix parent type API regression introduced in #713

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

diff --git a/lib/rack/utils.rb b/lib/rack/utils.rb
index 7f30a55a..53303995 100644
--- a/lib/rack/utils.rb
+++ b/lib/rack/utils.rb
@@ -29,7 +29,7 @@ module Rack
     # InvalidParameterError is the error that is raised when incoming structural
     # parameters (parsed by parse_nested_query) contain invalid format or byte
     # sequence.
-    class InvalidParameterError < TypeError; end
+    class InvalidParameterError < ArgumentError; end
 
     # URI escapes. (CGI style space to +)
     def escape(s)
-- 
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