I still manage to solve the puzzles using the strategy here. You just need to find the correct place to set the breakpoint.

At the moment I search for the following to find the nested for-loops in the js file (https://www.jigidi.com/game/17/js/)
Search for:
for (var D = 0, y = 0; I > y; ++y)
and then set this in console:
y = I