Exception from Tracker afterFlush function: Failed to execute 'requestAnimationFrame' on 'Window': The callback provided as parameter 1 is not a function.
TypeError: Failed to execute 'requestAnimationFrame' on 'Window': The callback provided as parameter 1 is not a function.

function headerParallax(x, z, y) {



  $(window).scroll(function() {
    // Store scrollTop in variable
    var scrollPos = $(window).scrollTop();
    // var viewportHeight = $(window).height();
    //console.log(scrollPos + 'bgbottle1');

    var bouncePos = ((-1 * (scrollPos ) * 1.5) + scrollPos).toFixed(2);

    var bouncePos1 = ((-1 * (scrollPos - 150 ) * 1.5) + scrollPos).toFixed(2);

    var bouncePos2 = ((-1 * (scrollPos - 200) * 1.25) + scrollPos).toFixed(2);


    $(".bottle1").css({ 'background-position': x + bouncePos + 'px'});

    if (scrollPos > 150){

      $(".bottle2").css({ 'background-position': z + bouncePos1 + 'px'});

    }

    if (scrollPos > 350){

      $(".glass").css({ 'background-position': y + bouncePos2 + 'px'});

    }

  });
} // end headerParallax



(function() {
  var lastTime = 0;
  var vendors = ['ms', 'moz', 'webkit', 'o'];
  for(var x = 0; x < vendors.length && !window.requestAnimationFrame; ++x) {
    window.requestAnimationFrame = window[vendors[x]+'RequestAnimationFrame'];
    window.cancelAnimationFrame = window[vendors[x]+'CancelAnimationFrame']
    || window[vendors[x]+'CancelRequestAnimationFrame'];
  }

  if (!window.requestAnimationFrame)
    window.requestAnimationFrame = function(callback, element) {
      var currTime = new Date().getTime();
      var timeToCall = Math.max(0, 16 - (currTime - lastTime));
      var id = window.setTimeout(function() { callback(currTime + timeToCall); },
      timeToCall);
      lastTime = currTime + timeToCall;
      return id;
    };

    if (!window.cancelAnimationFrame)
      window.cancelAnimationFrame = function(id) {
        clearTimeout(id);
      };
    }());


//Window resizing fucnsions

$(window).resize(function(){
    if($(window).width() > 921 ){
    $(".bottle1").css({ 'background-position': "368px 0"});
    $(".bottle2").css({ 'background-position': "-425px 150px"});
    $(".glass").css({ 'background-position': "900px 132px"});
    window.requestAnimationFrame(headerParallax("368px ","-452px ", "900px "));
  }else if($(window).width() < 920){
    $(".bottle1").css({ 'background-position': "150px 0"});
    //$(".bottle2").css({ 'background-position': "-500px 0"});
    //$(".glass").css({ 'background-position': "600px 132px"});
    window.requestAnimationFrame(headerParallax("150px ","-500px ", "600px "));
  }
}); //end windoResize

if($(window).width() > 920 ){
  window.requestAnimationFrame(headerParallax("368px ", "-452px ", "900px "));
}else if($(window).width() < 920 ){
  window.requestAnimationFrame(headerParallax("150px ","-500px ", "600px "));
}