618.08 KB, video/webm
>>> My Info: Win7_64, Nightly 48, 32bit, ID 20160330030326 STR: 1. Open attachment 8724506 [details], set breakpoint at line 3, click on the page 2. Move mouse a bit, then hover mouse over the 1st word "window" in the 2nd line 3. Wait exactly ~0.5s. Actually, you have to figure it out that timeout yourself =( 4. Scroll the page down once using mouse wheel AR: I stopped moving mouse over "window" in 2nd line, and Debugger opened popup for "window" in 29 line. Obviously, in real life they would be just different objects. ER: Debugger should take scrolling into account. Even if I don't move mouse pointer, it doesn't mean that Debugger can just show popup at any time and be right about it. I'm in the middle of scrolling. Note: You can accidentally run into bug 1211514
This is a UI papercut. Assigning P3 to this.