* 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:
They are the world's gravest super-villains: Ultraman, Owlman, Superwoman, Power Ring and Johnny Quick--the legendary Crime Syndicate of Amerika! Nothing has ever seriously threatened the global corruption they proudly enforce, but now a twisted mirror image of the CSA has arrived from the flip side of reality. Can anything stop this so-called "JUSTICE LEAGUE," or will the stable, perfect evil of the Earth 2 fall victim to the tyranny of law, righteousness and freedom?