* 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 latest, deadliest JLA villain attacks! Who is Dr. Impossible and what is he building alongside Professor Ivo? The answer will shock you as another legendary JLA villain returns and an army of Red Tornado duplicates face off with Green Lantern, Black Canary and Arsenal!