* 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:
First: Flash back to Deadpool's adventures of yesteryear with Iron Man! Then: A demon hires Deadpool to reclaim damned souls! And just in case you didn't think he could get any stranger, Wade gets in touch with his feminine side! Plus: Deadpool targets a man with aquatic powers, and then teams up with your Superior Neighborhood Spider-Man! And we promise he kills one of those two! Gerry Duggan and Brian Posehn's hilarious, nonstop reinvention of the Merc With a Mouth continues here!