Hi everybody!

We already have a reverse proxy in GAE that caches responses with
Cache-control:public. I was wondering if we can also use the stale-
while-revalidate option to prevent cold starts. According to the spec,
that option allows the proxy to return a stale version while fetching
the new one:

http://www.igvita.com/2008/10/07/asynchronous-http-cache-validations/
http://tools.ietf.org/html/draft-nottingham-http-stale-while-revalidate-01

My questions:

1) Does GAE reverse proxy support stale-while-revalidate?
2) Do you think that strategy can minimize cold start impacts?

Thanks
Sérgio

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