* 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:
Collects X-Calibre #2-3, Astonishing X-Men (1995) #2-4, Generation Next #2-3, X-Man #2-3, Factor X #3, Amazing X-Men (1995) #3, Weapon X (1995) #3, Gambit & The Externals #3, and X-Universe #1.
The mirror gets darker and the Amazing X-Men more Astonished by the minute! Magneto has dedicated his life to freeing humanity and mutantkind alike, but will Apocalypse now require him to destroy reality to save it! Sides are switched and secrets shown with repercussions ringing from the Savage Land to the Shi-ar Galaxy! Plus: a rare look at how Apocalypse altered the rest of Marvel's mightiest! Doctor Doom and Reed Richards, side-by-side? Matt Murdock and the Kingpin, allies? Gwen Stacy in mourning for Peter Parker? Avengers, Exiles, etc. in the original alternate X-saga!