That was fast :)
1. To make your report more "professional-looking" report, it may be useful to also add browser name / version. It does not matter for this bug, I am just mentioning it as a general advice.
2. The actual bug is probably in button name. I added animation stopping intentionally, as a way to reduce excessive flashing after "Ok, I get it" user reaction. I should maybe change 'again' label to 'stop' while animation is running, or something to that effect. I will think more about the best solution here.