why does this fail?

[robertleeplummerjr]

var verticies = JSON.parse("[[-72.63590100318186,41.903199002174524],[-72.63589899863476,41.90319900010549],[-72.63589800335812,41.903200000183766],[-72.63589999913334,41.90320000088696],[-72.63590100318186,41.903199002174524],[-72.65286999984018,41.904495999513564],[-72.65286999650422,41.904495000715706],[-72.65272300000595,41.90442700108841],[-72.6527230033396,41.90442799988625],[-72.65286999984018,41.904495999513564],[-73.07008199661202,42.087010997932936],[-73.06877799682555,42.08418999911852],[-73.06455500243456,42.075341999930394],[-73.06337700018447,42.072873001420284],[-73.06237399563176,42.07077099972576]]");
var holes = [1, 2];
var dimensions = 5;
earcut(verticies, holes, dimensions);

[robertleeplummerjr]

To answer my own question, because this returns null: https://github.com/mapbox/earcut/blob/master/src/earcut.js#L74

And this doesn't check for if it is null:
https://github.com/mapbox/earcut/blob/master/src/earcut.js#L267

Could this be resolved with?:

        outerNode = filterPoints(outerNode, outerNode.next) || outerNode;