* 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:
Prologue: "The Haunting of Keyhouse." Sam Lesser may be dead and gone, but Dodge still has uses for him, and in the first chill days of October, will make contact with him again. The dead know things the living may not, and Sam's restless spirit has had time to discover the thing Dodge wants to know most of all... where to find the key to the black door. The third storyline in the Eisner-nominated series begins here!