com.typesafe.play.cachecontrol.ResponseServeActions
A stored response was found, but is stale.
The cache must validate the request with the origin server.
If the origin server cannot be reached, then the cache MUST serve a gateway timeout response.
A stored response was found, but is stale.
The cache must validate the request with the origin server.
If the origin server cannot be reached, then the cache MUST serve a gateway timeout response.