cache response transformed data

[Geert Lugtenberg]

Hi all,

I have a plugin that transforms response data from an origin server at the 
HTTP_RESPONSE_TRANSFORM hook. As this hook is after the cache write of the 
response data, my modified data doesn't get written into the cache. How can I 
write the transformed content to the cache, so that I only have to transform 
once when there is a cache miss/stale?

Thanks.