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-rw-r--r--actionpack/lib/action_dispatch/http/cache.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/actionpack/lib/action_dispatch/http/cache.rb b/actionpack/lib/action_dispatch/http/cache.rb
index d2404e63c5..9b9e81440b 100644
--- a/actionpack/lib/action_dispatch/http/cache.rb
+++ b/actionpack/lib/action_dispatch/http/cache.rb
@@ -1,3 +1,5 @@
+require 'active_support/core_ext/object/blank'
+
module ActionDispatch
module Http
module Cache