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-rw-r--r--railties/lib/rails/generators/rails/app/templates/config/initializers/cookies_serializer.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/railties/lib/rails/generators/rails/app/templates/config/initializers/cookies_serializer.rb b/railties/lib/rails/generators/rails/app/templates/config/initializers/cookies_serializer.rb
index 7f70458dee..93329258f7 100644
--- a/railties/lib/rails/generators/rails/app/templates/config/initializers/cookies_serializer.rb
+++ b/railties/lib/rails/generators/rails/app/templates/config/initializers/cookies_serializer.rb
@@ -1,3 +1,4 @@
# Be sure to restart your server when you modify this file.
+# This is a new Rails 5.0 default, so introduced as a config to ensure apps made with earlier versions of Rails aren't affected when upgrading.
Rails.application.config.action_dispatch.cookies_serializer = :json