We have a system where we pass a nonce from a PHP-script on the server to an AJAX-call running client-side, and then back again to check the validity of the request.
This nonce is cached, and we can't figure out how to exclude it. We had cache time set to 10 hours but have since reduced it to 8 hours.
But let's say the nonce is renewed at 12 AM and the cache is renewed at 10 AM, we still have six hours of the nonce not working even with 8 hours cache.
How do we fix this?