* 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:
How did Superman and Batman discover each other's secret identities? Why was Deathstroke after Bruce Wayne on one of his earliest assignments? How do Ultraman and Owlman fit into this? And why are they all on a cruise into the Bermuda Triangle?
The answers will shock and amaze in this far-out reimagining of one of the first meetings between the Man of Steel and the Caped Crusader!