Lichess thought I left the game

pt.lichess.org/rL3OIioqWxQ4

I didn't leave the game, i just lost my connection but it was recovered a minute later, whatever, Lichess proposed my opponent to get the win by walkover as if i had abandoned

What is the criteria of the site to say if I voluntarely left the game and don't wanna play it anymore or not?

It's if you leave a game for too long, usually 1-2 minutes. Also, it gives your opponent the option to draw, or claim the game as a win. I always draw if I feel I didn't earn a win.

I think a far better solution (read: feature request) would be to significantly extend the time the disconnected user (du) has to restore her connection if one of the following conditions is met:

* The du has a piece advantage in terms of points.
* The du has more time than the connected user.

The connected user should never be able to stop the game if the du has more time!