Plugins list cache has expired updating please wait
Of course, simply refreshing your cache with CTRL F5 will fix the problem, but how many visitors are going to know that?
Not all resources on a site absolutely need to be cached either.
How can I assure that a site visitor always gets the data directly from the cache and never has to wait for it to be generated?
My cache gets invalidated quiet often, as this happens each time new content is created or edits are made. Without the template being cached this leads to 3 seconds delay in page-load.
That being said, I highly recommend not using the Expires Default header that sets a default time span for all resources.
In most cases, you will not want to set a general expiry date for everything. If so, you need to consider the effects of setting expires headers that may cause issues with the shopping cart.
Any idea on how to trigger the recreation of all cached template content automatically? Using Craft cache this is solved for all but one site visitors, because there is still the first visitor, that has to trigger the caches to be created.