Does 12 speed 10-42T or 10-40T XDR cassette exist?

[lidation]

I am building a new endurance/gravel bike with 1X drivetrain. I'd like to use XDR drive body for the rear hub.
I am looking for rear cassette: XDR compatible, 12spd, 10-40T or 10-42T. 

I wasn't able to find any. there are 10-44T and 10-50T.  But I really don't want that big of a chainring for weight and aesthetics.

Any thoughts? am I not looking hard enough or they just don't get made?

[Asco]

Unfortunately not, according to this source:

https://docs.google.com/spreadsheets/d/16C3Rz6qmzmurSNd-L3IeMSFukkBFV6D1DRbfS59EDrE/edit?gid=873671641#gid=873671641,

[jonathanf2]

Unfortunately not, according to this source:

https://docs.google.com/spreadsheets/d/16C3Rz6qmzmurSNd-L3IeMSFukkBFV6D1DRbfS59EDrE/edit?gid=873671641#gid=873671641,

Spedao does make the 11 speed 10-42t, which is a decent cassette. Though they don't seem willing to make a 12 speed version.