* 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:
In the "Lords of Luck" conclusion, Green Lantern and Batman are horrified to discover the secret to the theft of the Book of Destiny, but before it can reach its rightful owner, the Book winds up in the hands of the only heroes in the DCU who aren't in its pages! How is that possible?