jochy6

I could fix it.

The problem had been due to WordPress’s idiotic idea of absolute paths (https://domain.com/blabla instead of /blabla.

I’m using an ADC for SSL-Offload (and several more, i.e. caching, WAF, …). So requests from outside come via SSL, while WordPress does not know. Is some overhead on ADC, as several links have to be made relative, but works fine. Just not for this very plugin. It used to work with previous versions.

I investigated a little bit deeper.

Probably, this message, displayed to an admin doing changes to the web-page, may indicate an issue as well:

Failed to load plugin URL: https://*name of the server*/wp-content/plugins/wp-statistics/assets/js/tinymce.min.js

The file is there. It’s available, it has content. However, it’s available from outside via SSL only.

Watching statistics graphs, I see the following problem:

Failed to load plugin url: https://norz.at/wp-content/plugins/wp-statistics/assets/js/tinymce.min.js

Again, it loads via HTTP, my browser does not permit HTTP due to the HSTS header settings. Seems like something gets messed up in your scripts?