Does XP support any kind of request scope that lets parts set data that can be read in the response filter when the page is being assembled?
We want to implement an x-key based Varnish cache on the frontend, that knows what content has been involved in building the current page.
I am basically hoping that I can set some data in the return object of the part, and that all those return objects are available later on in the response filter? Is there some way of doing this? The hope is that each part will be able to report which IDs has been involved in building its fragment of the response, and that all those individual part responses can be merged together by the response filter when the page is being built.