* 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:
"No Pie For Jughead": Jughead's Mom has baked a pie for the charity bake sale, and she wants Jughead to guard it while she visits his aunt. Will the man of a thousand taste buds be able to resist the temptation? It's a delicious slice of Jughead's life you won't want to miss!