Moodle – Filepicker not working in 2.7.1+ on HTTPS

As a request to our client we changed to HTTPS on our server for their Moodle 2.7.1+ instance. I configured the site, but after the change the file picker stopped working. I have found that Chrome console shows the following: Failed to load resource: the server responded with a status of 404 (Not Found) https://c328740.ssl.cf1.rackcdn.com/mathjax/2.3-latest/MathJax.js?delayStartupUntil=configured Uncaught […]