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-rw-r--r--lib/yahns/rack.rb5
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/yahns/rack.rb b/lib/yahns/rack.rb
index 3ec3582..a2af3b3 100644
--- a/lib/yahns/rack.rb
+++ b/lib/yahns/rack.rb
@@ -1,6 +1,7 @@
 # -*- encoding: binary -*-
 # Copyright (C) 2013-2015 all contributors <yahns-public@yhbt.net>
 # License: GPLv3 or later (https://www.gnu.org/licenses/gpl-3.0.txt)
+# frozen_string_literal: true
 require 'rack'
 class Yahns::Rack # :nodoc:
   attr_reader :preload
@@ -62,10 +63,10 @@ class Yahns::Rack # :nodoc:
       "rack.run_once" => false,
       "rack.hijack?" => true,
       "rack.version" => [ 1, 2 ],
-      "SCRIPT_NAME" => "",
+      "SCRIPT_NAME" => ''.dup,
 
       # this is not in the Rack spec, but some apps may rely on it
-      "SERVER_SOFTWARE" => "yahns"
+      "SERVER_SOFTWARE" => 'yahns'.dup
     }
   end