1. If the page is not an active CF zone, it can be purged (but how was it cached to begin with?) 2. If it is an active CF zone, but not proxied, it can be purged (again, how was it cached to begin with?) 3. If it is proxied and you own it, you can purge it 4. If you do not own it, it cannot be purged
I think I am confused because it isn't clear how a page that isn't active or proxied (1 and 2) can be cached in the first place. Moreover, why can those be purged but #4 can't?
Surely I'm missing something fundamental about how this all works. I hope someone can clarify for me!