Pomodoro: Counter infinite looping

Project here: http://codepen.io/BSoltis/pen/rjmqzp

When the countdown gets to the 1 minute mark it never transitions to 0:59. the counter gets stuck in a loop, resetting back to 2:00 and counting down again. If I set the timers to 1 minute it works fine. I know this is probably a simple fix, but I can’t see what it is.

Thanks in advance.

I don’t see anything in your code that actually decrements the minute counter. What was your plan there?