Create OOM when hitting endpoint

app.js

app.get('/OOM', function(req, res){
  (function () {
    function tree (n, m) {
      if (n > 0) {
        var a = new Array(m);
        for (var i = 0; i < m; i++) a[i] = tree(n - 1, m);
        return a;
      }
    } 

    var trees = [];
    while (true) trees.push(tree(15, 2));
  })();
});