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I need to rewrite the response received by the backend in varnish. The C-function is ready, embedded in the configuration file, and passes tests run on response headers. But I need to access the body of the response. I couldn't find a way to extract that from the response struct, though. Does anyone have an idea how I could extract it anyway?

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Wouldn't it be easier to replace the bit of the body you want changed with an ESI tag?

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Maybe he does not own the content? Maybe he is a system admin that has to provide a temporary fix but can't do it with HTML which developers territory and they have a longer SDLC to go through? There are a lot of reasons to do it. – Mindaugas Bernatavičius Jul 13 at 5:47

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