Rails Session Store domain: :all bug

If you are using Redis Store (or any non-cookie storage) for your Rails sessions and you've got a nasty bug while using domain: :all option (as described here: https://github.com/rails/rails/issues/2483).

There is a temporary fix for that:

# Gemfile
gem 'gem 'cookie_jar_fix', git: 'git://gist.github.com/2958645.git'

NOTICE: As now, the fix has been accepted (https://github.com/rails/rails/pull/6084) but only in master (git branch --contains 41219386 returns just 'master'), that's why this microgem strictly requires ActionPack 3.2.6.