We (At Tumult) do have a library CDN on our todo list, but in the meantime I setup a quick CDN. There are no guarantees to this and this is not provided by Tumult. I'll personally do my best to keep this up: https://hypelibrary.rememberi.es/
This is fronted by Cloudflare with 30 day expires headers. The server is hosted by Nearly Free Speech.
You would use:
... in your Advanced Export CDN field.
NO GUARANTEES. Please turn on notifications for this thread if you use it in case I need to remove this in the future. Want to host your own? Here's a repo to get started: https://github.com/themorgantown/hypelibrary
This server is Gzipped, HTTPS-friendly, and should be speedy. I do not have any logging enabled whatsoever besides what cloudflare provides (and Google Analytics on the landing page).
Response headers from August 30, 2017 12:45 PM PST:
date:Wed, 30 Aug 2017 19:37:50 GMT
expires:Fri, 29 Sep 2017 19:37:50 GMT
last-modified:Wed, 30 Aug 2017 18:46:13 GMT