[93po]

doesn't even work without enabling third party JS

[eadmund]

Yup, I noticed that myself. If it doesn't work with uMatrix … then it doesn’t work.

[icebraining]

Hardly "third-party", it's just a second domain of the same institute.

[jimsmart]

Whatever they’re doing, it’s still “third-party” enough that it won’t work with mobile Safari (or perhaps Safari’s default settings).