1. Open test URL. 2. Scroll down enough to bring "Make video full-screen" button is in view. 3. Click button. 4. Hit escape. 5. Click button. 6. Hit escape. The scroll position is correct after exiting full-screen the first time, but has returned to the top of the page after exiting the second full-screen.
WFM on Windows. Probably platform specific. I haven't tried on MacOSX.