Quote Originally Posted by lat9 View Post
Thanks, I'll keep that in mind ... although I'm not sure it applies in the current case as I'm able to checkout with OPC using either jQuery 1.12.x or 2.1.4.
As you are someone who checks their code beforehand I'm sure your code is not the problem.

Where I found the jQuery Migrate to be very helpful is when old custom code or outdated modules are being used, which can be difficult to find / correct on errors. Not saying that is that case here either but Migrate is now a tool I use without even thinking about it.