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-rw-r--r--lib/rack/conditionalget.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/rack/conditionalget.rb b/lib/rack/conditionalget.rb
index 3d4c78aa..441dd382 100644
--- a/lib/rack/conditionalget.rb
+++ b/lib/rack/conditionalget.rb
@@ -21,7 +21,7 @@ module Rack
 
     def call(env)
       case env[REQUEST_METHOD]
-      when GET, HEAD
+      when "GET", "HEAD"
         status, headers, body = @app.call(env)
         headers = Utils::HeaderHash.new(headers)
         if status == 200 && fresh?(env, headers)