In my previous post entitled Referencing jQuery, jQueryUI, and SPServices from CDNs, I provided the references to quickly add jQuery, jQueryUI, and SPServices from the CDNs I typically use.
However, I made a bit of a faux pas in what I provided. It’s better to omit the protocol in the references. Browsers will simply use the current protocol, whether it be http: or https:, as needed. This means that you won’t have to worry about any issues down the road should you decide to implement SSL. It also means that the location your user happens to use to access the site doesn’t matter.
Here’s my updated set of references with the protocols omitted and updated to the versions I’m currently using: