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Aaron Lehmann 11133181fc Fix CloseNotifier handling and avoid "the ResponseWriter does not implement CloseNotifier" warnings in logs ... A change in #763 to address review comments caused problems. Originally, instrumentedResponseWriter implemented the CloseNotifier interface, and would panic if it was wrapping something that did not implement that interface. This was split into a separate instrumentedResponseWriterCN type that implements CloseNotifier, so there's a fallback if instrumentedResponseWriter ever needs to wrap something that does not implement this interface. instrumentedResponseWriter's Value method would end up upcasting either type back to instrumentedResponseWriter, which does not implement the interface. In effect, instrumentedResponseWriterCN was never visible to the handler. This fixes the problem by implementing a wrapper Value method for instrumentedResponseWriterCN. Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>		2015-08-18 17:28:51 -07:00
docs	Fix CloseNotifier handling and avoid "the ResponseWriter does not implement CloseNotifier" warnings in logs	2015-08-18 17:28:51 -07:00