Disconnected for 11 seconds? Lost the game?

Hi.

I think this is unfair. Rebooted by browser because it was buggy, and then when I came back to the game, I found out I lost the game for leaving the game? Is it leaving if I doesn't response in 11 seconds?

Here is a link:

Here is another case: my opponent waited 2 seconds on my move, and that was enough to claim victory: