Replying to [comment:3 dmethvin]:
The Google CDN works with https right now. In the meantime we'll start a collection to get https working. You can donate here: http://jquery.org/donate/
As a company, we're unable to use the Google CDN due to privacy concerns and protection of our customers, specifically Google's wide-ranging data collection.
Also, Microsoft's CDN doesn't host older jQuery scripts (1.2.6), which I've contacted them about.
Also, your CDN (code.jquery.com - edgecast) is the fastest out of the 3, followed by Microsoft.
Furthermore, as Matt suggested in comment #2, if you provide a cdn, you can't simply provide half the functionality, i.e what about payment sites, login portals, etc?
Sorry, but making a comment like "Where does it say that those resources are available over https?" is cheer lack of care for your users.
Again, sorry, but making a comment like donate so we can fix this is further indicative of lack of care and trying to brush the issue aside.
At this point I'm left wondering why you even chose to provide users with a CDN and your comments cast doubt over its stability and availability.