route caching

[MortenHofft]

How to control caching per route?
And how to let data define it?

e.g. for a download page I would want no caching (or a short one) if the download is still preparing or running. But a longer one if succeeded and hence fairly stable. So in this case it depends on the download data (namely .status)

@danielvdm2000 what is your thoughts?

There might be valid works to work around it. I just realized that something I would normally do without thinking I wasn't aware of how to handle in this framework