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-rw-r--r--actioncable/lib/action_cable/connection/message_buffer.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/actioncable/lib/action_cable/connection/message_buffer.rb b/actioncable/lib/action_cable/connection/message_buffer.rb
index 4ccd322644..f151a47072 100644
--- a/actioncable/lib/action_cable/connection/message_buffer.rb
+++ b/actioncable/lib/action_cable/connection/message_buffer.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
module ActionCable
module Connection
# Allows us to buffer messages received from the WebSocket before the Connection has been fully initialized, and is ready to receive them.