function onAnimationExpired() {
          // although an expired animation is a failed animation, getting to
          // this outcome is very easy if the CSS code screws up. Therefore we
          // should still continue normally as if the animation completed correctly.
          close();
        }

function close(rejected) { // jshint ignore:line
        // if the promise has been called already then we shouldn't close
        // the animation again
        if (animationClosed || (animationCompleted && animationPaused)) return;
        animationClosed = true;
        animationPaused = false;

        $$jqLite.removeClass(element, setupClasses);
        $$jqLite.removeClass(element, activeClasses);

        blockKeyframeAnimations(node, false);
        blockTransitions(node, false);

        forEach(temporaryStyles, function(entry) {
          // There is only one way to remove inline style properties entirely from elements.
          // By using `removeProperty` this works, but we need to convert camel-cased CSS
          // styles down to hyphenated values.
          node.style[entry[0]] = '';
        });

        applyAnimationClasses(element, options);
        applyAnimationStyles(element, options);

        // the reason why we have this option is to allow a synchronous closing callback
        // that is fired as SOON as the animation ends (when the CSS is removed) or if
        // the animation never takes off at all. A good example is a leave animation since
        // the element must be removed just after the animation is over or else the element
        // will appear on screen for one animation frame causing an overbearing flicker.
        if (options.onDone) {
          // IF WE GET HERE MAYBE DIGEST ON THE SCOPE OF THE ELEMENT
          options.onDone();
        }

        // if the preparation function fails then the promise is not setup
        if (runner) {
          runner.complete(!rejected);
        }
      }