Yes, enabling billing enables edge caching for requests that use the
cache-control header. This is a "best effort" caching and we do not
guarantee you will get it.

Can you describe what the expected behavior should be? What are you trying
to do.

--
Ikai Lan
Developer Programs Engineer, Google App Engine
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On Wed, Oct 6, 2010 at 7:46 AM, Mike <[email protected]> wrote:

> I have an app that sits behind a reverse proxy serving requests for
> multiple domains using the X-Forwarded-For header. This has been
> working very well for many months. Yesterday, after enabling billing
> for the app, I started seeing dynamic requests that were getting
> served the wrong content (content for the wrong domain).
>
> In troubleshooting the issue, I noticed that many of the problem
> requests are served in only a couple of milliseconds, and the logs
> don't contain the normal logging messages that my code should produce,
> and don't show up in appstats. I'm assuming this means that the
> caching I've read about but never seen to work is now serving requests
> (since the Cache-Control header is set), and is not keeping cached
> pages separate based on the X-Forwarded-For header, but just the path.
>
> Is there any way to confirm whether this is what is happening? If so,
> is there a way to disable this functionality (going back to the way it
> worked before we enabled billing), without removing the Cache-Control
> header and losing it's benefits?
>
> -Mike
>
> -=-
>
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