Iframes and _blank link problems

Our scenario is such that we’re using inline Google ads, and those are delivered through iframes. All of the ads we have are the same as the ads from our website, which utilize target="_blank" for the links.

What’s the best way to capture these navigation events? Nothing I’ve tried via angular gets picked up ($stateChangeStart, any otherwise routing, listening to any location event changes). The only thing I can think of left to do is try to write a plugin to implement something like this:

Has anyone run into anything like this before?