Caching rule for contexthub js

[#1]

The below url is fine in publish but how do we cache this in dispatcher as there is no extension at end:

/etc/cloudsettings.kernel.js/libs/settings/cloudsettings/legacy/contexthub

Shall we ignore this for caching ?

[#2]

ContextHub is a tool on author - no reason to cache this.

[#3]

Is it? what's the use of it having in author. We want to use it as data layer to integrate in launch so it should be available in publish as well dispatcher so that we can use that data ?