FYI: if you have error loading config.json check this

Hi,

If your PDF stopped to show on your page with an error loading config.json, you need to disable IDM (Internet Download Manager) -or any other download program/extension included in your navigator, because it catch the pdf file (to download it) before your reader, that who you will have this error.

I don’t know how to block the bug, but for the moment, you can put some text telling your user to do the same if error.

Hope that helps someone.