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-rw-r--r--actionpack/lib/action_controller/metal/data_streaming.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/actionpack/lib/action_controller/metal/data_streaming.rb b/actionpack/lib/action_controller/metal/data_streaming.rb
index 334943818c..75c4d3ef99 100644
--- a/actionpack/lib/action_controller/metal/data_streaming.rb
+++ b/actionpack/lib/action_controller/metal/data_streaming.rb
@@ -150,6 +150,7 @@ module ActionController #:nodoc:
disposition = options.fetch(:disposition, DEFAULT_SEND_FILE_DISPOSITION)
unless disposition.nil?
+ disposition = disposition.to_s
disposition += %(; filename="#{options[:filename]}") if options[:filename]
headers['Content-Disposition'] = disposition
end