Alexander,
SPJS Charts (latest version) is unable to load the script from gstatic.com.
Firefox Console message: “Loading failed for the <script> with source “https://www.gstatic.com/charts/loader.js”.
Placing gstatic.com directly in the browser yields the 404 error shown in the attachment. Did not have this issue on our in-house SP2013 with SPJS Charts until recently. Internal issues or larger issue with the gstatic site?
Thanks for your help or any ideas,
MikeS