Have you try to put "window.popupReview = true;" in your config file? It works for me on Russian wiki.

Have you try to put "window.popupReview = true;" in your config file? It works for me on Russian wiki.

I have found a workaround for this problem. At least in Russian wiki the following hack works:

{{Imagestack
 |File:Annual-Haircut-Day-English.pdf|page{{=}}1 
 |File:Annual-Haircut-Day-English.pdf|page{{=}}2
 |File:Annual-Haircut-Day-English.pdf|page{{=}}3 
 |File:Annual-Haircut-Day-English.pdf|page{{=}}4 
}}

I never done this, so I wonder if someone more familiar with the process can do it. It's not my code, and I don't know how to test it. Or is it OK to submit patch without testing? Also there are two patches above, I don't know which one is better.

Can someone submit this patch?

By the way, if the user chose to hide some edits from the watchlist (for example by choosing a namespace) than "Mark all page as visited" should mark only those pages. (Now it seems to mark all pages).

The problem is still exists. Right now the first page in https://en.wikipedia.org/wiki/Category:Articles_with_math_errors:
https://en.wikipedia.org/wiki/Four-bar_linkage
and the first page in https://ru.wikipedia.org/wiki/Категория:Страницы_с_ошибками_в_формулах
https://ru.wikipedia.org/wiki/Звезда_Вольфа_—_Райе
had "Math extension cannot connect to Restbase."
Usually null edit fix this problem.