* 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:
Based on the AMAZING new animated series! What do you do when the world's evilest villains attack? Call Earth's Mightiest Heroes to save the day! In our first tale, CAPTAIN AMERICA and THOR face a threat bigger than BOTH of them! And in tale two, following the exploits of everyone's favorite arrow-flinger: HAWKEYE!