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Exokit optimizes the timers allocation to reuse array slots. Additionally, the timer ids returned to
window
fromsetTimeout
/setInterval
need to be integers starting at1
-- contrary to node which returns objects.The bug here was that we were blindly incrementing the returned id in all cases, which allowed it to collide. This meant that
clearTimeout
could, for example, clear the wrong timeout, leading to really weird bugs.Partial fix for #1217.