* 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:
Blind Willie Johnson. Willie Dixon. Ma Rainey. We know their music, and of course we recognize their names, but to their fans the faces of these blues legends are equally as intrinsic. Award-winning author and illustrator William Stout presents more than 100 legends of the blues, interpreting their iconic visages in dramatic portraiture that blends graphic design and humor with the stylization of a master illustrator.