* 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:
THE ENDLESS AGE OF ULTRON! In Age of Ultron, a time-travelling Wolverine killed Hank Pym before he could create the world-conquering Ultron. What would the Marvel Universe look like if another founding Avenger had been killed instead? A world without the Wasp brings a world where Hank Pym created an Ultron even more heinous than the one we know!