I don't remember when exactly, but they fixed that at some point. I just ran this simple test in IE (without ever opening the dev tools) and got the alert: http

I don't remember when exactly, but they fixed that at some point. I just ran this simple test in IE (without ever opening the dev tools) and got the alert: http://jsbin.com/hodavocuwu/1/edit http://jsbin.com/hodavocuwu/1/edit