Blockly save() function

I need some help writing a save() block in blockly. This code moves the servo on pin B14 to two positions 0.5 seconds apart then saves it to the microcontroller so the code executes next time I plug it in. This code works when I write it in the JavaScript window:

setTimeout(function () {analogWrite(B14, 1.8 / 50.0, {freq:20});},500);
setTimeout(function () {analogWrite(B14, 1.6 / 50.0, {freq:20});},1000);
save();

Similarly, this code works to call the first two lines from a Blockly block, so I know I'm doing all of that correctly:

Blockly.Language.save = {
    category: 'Espruino',
    init: function() {
        this.appendDummyInput()
            .appendTitle('Save');
      this.setPreviousStatement(true);
      this.setNextStatement(true);
      this.setColour(100);
      this.setInputsInline(true);
      this.setTooltip('Save Code to Board');
    }
  };

Blockly.JavaScript.save = function() {
  var move = "setTimeout(function () {analogWrite(B14, 1.8 / 50.0, {freq:20});},500);\n";
  var move2 = "setTimeout(function () {analogWrite(B14, 1.6 / 50.0, {freq:20});},1000);\n";
  var saveCmd = "save();\n";
  return move + move2;
};

But as soon as I call the save() command from Blockly by changing line 18 to:

return move + move2 + saveCmd;

then the block does nothing. Meaning, the servo doesn't move, and there's no indication that anything was sent to the board. The frustrating part is that when I click on the command prompt side of the IDE and press up to see the commands sent, I see all three of the commands that I wanted to see:

setTimeout(function () {analogWrite(B14, 1.8 / 50.0, {freq:20});},500);
setTimeout(function () {analogWrite(B14, 1.6 / 50.0, {freq:20});},1000);
save();

Please help,
Rehman