Would be good if a user can purge CDN stale content via Breeze plugin along with Varnish cache and Internal cache. Is this a possibility?
Would be nice but just so you know, Cloudflare doesn’t cache dynamic pages, only static content (eg. JS, CSS, images, etc). If you run a CMS, Cloudflare won’t cache any of your web pages.
It is easy to purge cache at several levels. First Breeze offers Purge All Cache option in the top menu bar under Breeze menu. This option forcefully purges all the cache at any time.
Next, if you wish to purge varnish cache at any time, go to varnish tab and click the purge button.
Note that both these options remove all content from the cache. I hope this clarifies your question