How do I know which script in running Chrome causes to open a new pop-up?

Question

I have installed an extension in Chrome which opens up a pop-up tab when I click anywhere on the page (even if there is no link). When I see the "sources" tab in the "Developer Tools", it has a lot of extra scripts (like more than a hundred different scripts from hundreds of different sources) loaded which are never present in the original web page. I am trying to find out what particular script causes this. How do I do this?

Here's what I have already tried:

• I tried adding breakpoint on "mousedown" event listener. Turns out there are a couple of scripts adding event listener on that so I can't say which particular script is that.

• I also tried go through the div and iframe that have attributes like height: 0, left: 0 or top: -999, left: -999 but there are multiple such div s.

Any help?

Answer 1

Try overriding window.open:

window.open = function () { debugger; }

or

window.open = function () { console.trace(); }