1 files changed, 13 insertions, 0 deletions
diff --git a/actionpack/test/controller/live_stream_test.rb b/actionpack/test/controller/live_stream_test.rb
index e5fb50fca4..74b223e4f5 100644
--- a/actionpack/test/controller/live_stream_test.rb
+++ b/actionpack/test/controller/live_stream_test.rb
@@ -12,6 +12,11 @@ module ActionController
         'test'
       end
 
+      def default_header
+        response.stream.write "<html><body>hi</body></html>"
+        response.stream.close
+      end
+
       def basic_stream
         response.headers['Content-Type'] = 'text/event-stream'
         %w{ hello world }.each do |word|
@@ -94,5 +99,13 @@ module ActionController
 
       get :thread_locals
     end
+
+    def test_live_stream_default_header
+      @controller.request  = @request
+      @controller.response = @response
+      @controller.process :default_header
+      _, headers, _ = @response.prepare!
+      assert headers['Content-Type']
+    end
   end
 end