Adobe Exam AD0-E106 Topic 2 Question 40 Discussion

An html page is published and is accessible through the dispatcher. A client is trying to access the updated page but is not getting the updated content.

* A rule /type ''allow'' /glob ''*.html'' is present in the dispatcher /cache /rules configuration

* The HTTP header ''Cache-Control: max-age=3600'' is set for all requests with the html extension

* The /invalidate section is not set in the dispatcher configuration

* A flush agent is configured on the publish instance

* A CDN is serving all static content including html files and was flushed manually

Why does the content fail to update on the client side?