* Client-Side Metrics Include
* Wiki: https://tiny.amazon.com/cpso0wg6
* Needs to be included at the top of pages because it tracks latency--
* ue_t0 needs to be as close to body load as possible.
* - ue.tag maps to URLType dimension of OnlineQueryLog in PMET. Because we cannot add
* custome data to other dimensions in PMET through CSM, we are replicating it thrice to
* cover each store, page type, and the intersections of the two.
* - Whitelists are listed in the usage guide:
During a bloody war, a child is born at the cost of his mother's life. From this baby comes forth a huge and powerful dragon born of shadow that lays waste to the landscape. A quick-thinking knight locks the baby in a cage of darkness, where he grows to be a young man, knowing only the kindness of his young female tutor. Until the day the Shadows attack...