Почему не работает preloader?

Question

Aleks Kirilov @anton12333

Изучаю JavaScript

Почему не работает preloader?

Здравствуйте.

Почему не до конца прогружается preloader?

Код:

.preloader
			.sk-circle
				.sk-circle1.sk-child
				.sk-circle2.sk-child
				.sk-circle3.sk-child
				.sk-circle4.sk-child
				.sk-circle5.sk-child
				.sk-circle6.sk-child
				.sk-circle7.sk-child
				.sk-circle8.sk-child
				.sk-circle9.sk-child
				.sk-circle10.sk-child
				.sk-circle11.sk-child
				.sk-circle12.sk-child

.preloader {
  background: none repeat scroll 0 0 #fff;
  bottom: 0;
  left: 0;
  position: fixed;
  right: 0;
  top: 0;
  width: 100%;
  z-index: 9999;
}

.sk-circle {
  margin: 100px auto;
  width: 40px;
  height: 40px;
  position: relative;
  .sk-child {
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    &:before {
      content: "";
      display: block;
      margin: 0 auto;
      width: 15%;
      height: 15%;
      background-color: $mine-shaft;
      border-radius: 100%;
      -webkit-animation: sk-circleBouceDelay 1.2s infinite ease-in-out both;
      animation: sk-circleBouceDelay 1.2s infinite ease-in-out both;
    }
  }
}

.sk-circle.sk-circle2 {
  -webkit-transform: rotate(30deg);
  -ms-transform: rotate(30deg);
  transform: rotate(30deg);
}

.sk-circle.sk-circle3 {
  -webkit-transform: rotate(60deg);
  -ms-transform: rotate(60deg);
  transform: rotate(60deg);
}

.sk-circle.sk-circle4 {
  -webkit-transform: rotate(90deg);
  -ms-transform: rotate(90deg);
  transform: rotate(90deg);
}

.sk-circle.sk-circle5 {
  -webkit-transform: rotate(120deg);
  -ms-transform: rotate(120deg);
  transform: rotate(120deg);
}

.sk-circle.sk-circle6 {
  -webkit-transform: rotate(150deg);
  -ms-transform: rotate(150deg);
  transform: rotate(150deg);
}

.sk-circle.sk-circle7 {
  -webkit-transform: rotate(180deg);
  -ms-transform: rotate(180deg);
  transform: rotate(180deg);
}

.sk-circle.sk-circle8 {
  -webkit-transform: rotate(210deg);
  -ms-transform: rotate(210deg);
  transform: rotate(210deg);
}

.sk-circle.sk-circle9 {
  -webkit-transform: rotate(240deg);
  -ms-transform: rotate(240deg);
  transform: rotate(240deg);
}

.sk-circle.sk-circle10 {
  -webkit-transform: rotate(270deg);
  -ms-transform: rotate(270deg);
  transform: rotate(270deg);
}

.sk-circle.sk-circle11 {
  -webkit-transform: rotate(300deg);
  -ms-transform: rotate(300deg);
  transform: rotate(300deg);
}

.sk-circle.sk-circle12 {
  -webkit-transform: rotate(330deg);
  -ms-transform: rotate(330deg);
  transform: rotate(330deg);
}

.sk-circle .sk-circle2:before {
  -webkit-animation-delay: -1.1s;
  animation-delay: -1.1s;
}

.sk-circle .sk-circle3:before {
  -webkit-animation-delay: -1s;
  animation-delay: -1s;
}

.sk-circle .sk-circle4:before {
  -webkit-animation-delay: -0.9s;
  animation-delay: -0.9s;
}

.sk-circle .sk-circle5:before {
  -webkit-animation-delay: -0.8s;
  animation-delay: -0.8s;
}

.sk-circle .sk-circle6:before {
  -webkit-animation-delay: -0.7s;
  animation-delay: -0.7s;
}

.sk-circle .sk-circle7:before {
  -webkit-animation-delay: -0.6s;
  animation-delay: -0.6s;
}

.sk-circle .sk-circle8:before {
  -webkit-animation-delay: -0.5s;
  animation-delay: -0.5s;
}

.sk-circle .sk-circle9:before {
  -webkit-animation-delay: -0.4s;
  animation-delay: -0.4s;
}

.sk-circle .sk-circle10:before {
  -webkit-animation-delay: -0.3s;
  animation-delay: -0.3s;
}

.sk-circle .sk-circle11:before {
  -webkit-animation-delay: -0.2s;
  animation-delay: -0.2s;
}

.sk-circle .sk-circle12:before {
  -webkit-animation-delay: -0.1s;
  animation-delay: -0.1s;
}

@-webkit-keyframes sk-circleBouceDelay {
  0%,
  80%,
  100% {
    -webkit-transform: scale(0);
    transform: scale(0);
  }
  40% {
    -webkit-transform: scale(1);
    transform: scale(1);
  }
}

@keyframes sk-circleBouceDelay {
  0%,
  80%,
  100% {
    -webkit-transform: scale(0);
    transform: scale(0);
  }
  40% {
    -webkit-transform: scale(1);
    transform: scale(1);
  }
}

$(window).on("load", function() {
  $(".sk-circle").fadeOut();
  $(".preloader")
    .delay(400)
    .fadeOut("slow");
  $("body").removeClass("fixed");
});