Invalidating the cache
Each invalidation request specifies a path pattern that identifies the object or set of objects that should be invalidated.The path pattern can be either a specific path, such as flag to the command. Invalidation is intended for use in exceptional circumstances, not as part of your normal workflow.Importantly, invalidations don't affect cached copies in web browser caches or caches operated by third-party Internet service providers. Invalidate only what you must, because invalidating too much might cause a large spike of requests that were being served by the caches to suddenly hit your instances or buckets.As an alternative to routine invalidations, you can proactively set appropriate expiration times on responses and/or use different URLs for different versions of your content. You can submit at most one invalidation per minute. Because Cloud CDN is a distributed system, it might report that an invalidation has completed even though some small number of caches have not yet processed the invalidation request.
Invalidating the cache comments