Hi, I¹m looking for a way to cache data from systems that are disconnected at times and to serve from the cache when the systems are disconnected. I know that 2.7 supports the stale-if-error directive but I believe that requires the origin to set that in the content header which is currently out of the realm of possibilities. Is there another way to do this? Can I use header_replace to force the stale-if-error directive? Thanks
