code: function handleSuccess() {
    clearOutdatedErrors();
    destroyErrorOverlay();
  
    var isHotUpdate = !isFirstCompilation;
    isFirstCompilation = false;
    hasCompileErrors = false;
  
    // Attempt to apply hot updates or reload.
    if (isHotUpdate) {
      tryApplyUpdates();
    }
  }
docs: Successful compilation.