4th October 2015, 7:49 AM
Unfortunately "pop up blocking" functionality in browsers is not 100% effective. Some code manages to "trick" browsers into doing it anyway. The better solution would be to completely remove that API from the browser code so as to render pop-ups impossible.
"On two occasions, I have been asked [by members of Parliament], 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able to rightly apprehend the kind of confusion of ideas that could provoke such a question." ~ Charles Babbage (1791-1871)