On https://dst.academy/ firefox developer edition (58.0b8, 64-Bit) on Window 10 (10.0.16299 Build 16299) has problems loading the script from
https://www.googletagmanager.com/, the web developer tools console prints
Loading failed for the <script> with the source "https://www.googletagmanager.com/gtag/js?id=placeholder". but it actually doesn’t tell why it wasn’t able to load it.
This seems to work in Chrome after all.
Does someone have an idea what’s going on here? Is this some kind of cross-origin issue/bug?
Thanks a lot!