|Subject:||Document which of X-Died and Internal-response responses should be retried|
It's not entirely obvious to me, in which case request should be retried due to network error. seems X-Died header can contain /^read timeout/, /^EOF/, /^read failed/ and this mean request should be retried. However I am not sure if it can contain other errors, which mean request should not be retried. Also, not sure about 'Client-Warning' = 'Internal-Response' errors.