* 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:
"Terror of Trigon" concludes as the greatest heroes alive--Superman, Batman, and the Justice League--are powerless to stop the coming of Trigon the Terrible. Only the New Teen Titans stand in the way of this demon and the total destruction of mankind. To save the day, one Titan will have to make the ultimate sacrifice!