Illegal fallback instead of custom error in offline-exporting (CSP behaviour) about highcharts

[PadWorks]

Hi @karolkolodziej

Thanks for your feedback, the problem has been resolved. The order in the bundle was incorrect, in this case the jspdf and svg2pdf must be loaded before the highcharts scripts.

The whole thing was a little confusing because I couldn't find the init part in the highcharts-code and on the lines in the code of the offline-exporting module which trows the exception, the script is always loaded directly and no attempt is made to find the local library again.

[karolkolodziej]

Hi @PadWorks!

I think I know what your issue is but there is probably one misconception.
You are saying that:

should also be mentioned is that the two libraries are already loaded dynamically as a bundle and would be available on the site.

But as you can read in our documentation:

By default, the module will load these file from our server on demand, but the URL can be changed using the
[exporting.libURL](https://api.highcharts.com/highcharts/exporting.libURL) option. 
If the scripts have already been loaded by the page, Highcharts will not load them again. 
Note that even when loading these files, no chart data is sent to our server.

Not every time there is a need to load these two libraries thus we only load them on demand but no chart data is being sent anywhere.
If you want to avoid the callbacks when exporting you can load manually load this module as shown in the demo.