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-rw-r--r--activesupport/lib/active_support/message_verifier.rb5
1 files changed, 5 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/message_verifier.rb b/activesupport/lib/active_support/message_verifier.rb
index b3a087a596..0181070479 100644
--- a/activesupport/lib/active_support/message_verifier.rb
+++ b/activesupport/lib/active_support/message_verifier.rb
@@ -18,6 +18,11 @@ module ActiveSupport
# self.current_user = User.find(id)
# end
#
+ # By default it uses Marshal to serialize the message. If you want to use another
+ # serialization method, you can set the serializer attribute to something that responds
+ # to dump and load, e.g.:
+ #
+ # @verifier.serializer = YAML
class MessageVerifier
class InvalidSignature < StandardError; end