title: How do I force Azure CDN content to be purged or invalidated?
body: <p>I have content that rarely changes that I want to serve over the Azure CDN for performance reasons. When the content does change, though, it's important that the updated data is immediately available. Ideally, I'd be able to set a long TTL but then proactively tell the CDN to expire content when I update it. How can I accomplish this? There is no cache invalidation or purge API right now, and I would rather not set a short TTL.</p>