Having the same issue crop up on my end. We’ve been using W3 Total Cache + MaxCDN for a few years, and just started noticing this in the last few months. Older versions of W3 don’t cause the issue. Pretty sure this is a W3 or WP issue, as those appear to be the only two things that are different here. I even have them on the same dedicated server, and only one (the older one) works properly.
It’s basically trying to load minified files from the origin site as well as the CDN version. GTMetrix returns errors for “Serve resources from a consistent url:”
Any ideas?