after_actionの段階ではresponse.headerにetag入ってるのに、そこから先のどこかでCache-Control: no-store, must-revalidate, private, max-age=0に置き換わってる。pumaかmiddlewareか。
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after_actionの段階ではresponse.headerにetag入ってるのに、そこから先のどこかでCache-Control: no-store, must-revalidate, private, max-age=0に置き換わってる。pumaかmiddlewareか。