sendCodeReturn = function(jsonObj) {
    Ardublockly.largeIdeButtonSpinner(false);
    if (jsonObj === null) return Ardublockly.openNotConnectedModal();
    var dataBack = ArdublocklyServer.jsonToIdeModal(jsonObj);
    Ardublockly.arduinoIdeOutput(dataBack);
  }
Receives the IDE data back to be displayed and stops spinner.
@param {element} jsonResponse JSON data coming back from the server.
@return {undefined} Might exit early if response is null.