diff --git a/config/initializers/mongrel_workaround.rb b/config/initializers/mongrel_workaround.rb
new file mode 100644
index 00000000..f34f50a0
--- /dev/null
+++ b/config/initializers/mongrel_workaround.rb
@@ -0,0 +1,83 @@
+# adapted from https://gist.github.com/471663 and https://rails.lighthouseapp.com/projects/8994/tickets/4690-mongrel-doesnt-work-with-rails-238
+
+if Rails.version == '2.3.10' && Gem.available?('mongrel', '~>1.1.5') && self.class.const_defined?(:Mongrel)
+
+  # Pulled right from latest rack. Old looked like this in 1.1.0 version.
+  #
+  # def [](k)
+  # super(@names[k] ||= @names[k.downcase])
+  # end
+  #
+  module Rack
+    module Utils
+      class HeaderHash < Hash
+        def [](k)
+          super(@names[k]) if @names[k]
+          super(@names[k.downcase])
+        end
+      end
+    end
+  end
+
+  # Code pulled from the ticket above.
+  #
+  class Mongrel::CGIWrapper
+    def header_with_rails_fix(options = 'text/html')
+      @head['cookie'] = options.delete('cookie').flatten.map { |v| v.sub(/^\n/,'') } if options.class != String and options['cookie']
+      header_without_rails_fix(options)
+    end
+    alias_method_chain :header, :rails_fix
+  end
+
+  # Pulled right from 2.3.8 ActionPack. Simple diff was
+  #
+  # if headers.include?('Set-Cookie')
+  # headers['cookie'] = headers.delete('Set-Cookie').split("\n")
+  # end
+  #
+  # to
+  #
+  # if headers['Set-Cookie']
+  # headers['cookie'] = headers.delete('Set-Cookie').split("\n")
+  # end
+  #
+  module ActionController
+    class CGIHandler
+      def self.dispatch_cgi(app, cgi, out = $stdout)
+        env = cgi.__send__(:env_table)
+        env.delete "HTTP_CONTENT_LENGTH"
+        cgi.stdinput.extend ProperStream
+        env["SCRIPT_NAME"] = "" if env["SCRIPT_NAME"] == "/"
+        env.update({
+          "rack.version" => [0,1],
+          "rack.input" => cgi.stdinput,
+          "rack.errors" => $stderr,
+          "rack.multithread" => false,
+          "rack.multiprocess" => true,
+          "rack.run_once" => false,
+          "rack.url_scheme" => ["yes", "on", "1"].include?(env["HTTPS"]) ? "https" : "http"
+        })
+        env["QUERY_STRING"] ||= ""
+        env["HTTP_VERSION"] ||= env["SERVER_PROTOCOL"]
+        env["REQUEST_PATH"] ||= "/"
+        env.delete "PATH_INFO" if env["PATH_INFO"] == ""
+        status, headers, body = app.call(env)
+        begin
+          out.binmode if out.respond_to?(:binmode)
+          out.sync = false if out.respond_to?(:sync=)
+          headers['Status'] = status.to_s
+          if headers['Set-Cookie']
+            headers['cookie'] = headers.delete('Set-Cookie').split("\n")
+          end
+          out.write(cgi.header(headers))
+          body.each { |part|
+            out.write part
+            out.flush if out.respond_to?(:flush)
+          }
+        ensure
+          body.close if body.respond_to?(:close)
+        end
+      end
+    end
+  end
+end
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