This patch adds a new hook (request_status) that gets ran in proxy_handler just before the final return. This gives modules an opportunity to do something based on the proxy status.
A couple of examples where this is useful: -You are using a caching module and would rather return stale content rather than an error to the client if the origin is down. -you proxy some subrequests (using SSI - mod_include) and do not want SSI errors when the backend is down. If you would normally return HTTP_BAD_GATEWAY, you may have a module that serves some other content. This feature is one of the features of our in house proxy module that keeps us from moving toward the "stock" 2.1 proxy. -- Brian Akins Lead Systems Engineer CNN Internet Technologies
proxy.diff
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