I have a intranet, so can’t send link to example, and it’s anyway bad coding that’s the main issue.
In Firefox, there is a checkbox after the first popup “don’t let 192.168… ask again” that kills popups for the page/tab until reload of page. Without that you can’t get out of the popup’s.
I used it from time to time in firefox, on normal web pages before i look for the popup blocker.
Not a big deal, and my example has made me not fix the problem before now. But thought why don’t brave have that, nice to be able to stop a flood of popup’s.