* 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 mad Titan Thanos gathers the six Infinity Gems in a ruthless bid for interplanetary power! It's up to the Avengers to stop him! How far will the heroes go to beat a villain whose only goal is to win the favor of Death herself? Contains Avengers Annual #7 and Marvel Two-In-One Annual #2.