Three.js ViewSource

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<title>Three.js Test</title>

<!-- css -->
<style>
body {
	margin:0px;
	padding:0px;
}
.canvas_box {
	margin:0px;
	padding:0px;
	width:100%;
	height:100%;
	overflow:hidden;
	background-color:#000;
	position:relative;
}
#canvas_main {
	margin:0px;
	padding:0px;
	width:100%;
	height:100%;
}
#canvas_loader {
	margin:auto;
	position:absolute;
	top:0;
	left:0;
	right:0;
	bottom:0;
	pointer-events:none;
}

.canvas_loader,
.canvas_loader:after {
	border-radius: 50%;
	width: 10em;
	height: 10em;
}
.canvas_loader {
	margin: 60px auto;
	font-size: 10px;
	position: relative;
	text-indent: -9999em;
	border-top: 1.1em solid rgba(255,0,255, 0.2);
	border-right: 1.1em solid rgba(255,0,255, 0.2);
	border-bottom: 1.1em solid rgba(255,0,255, 0.2);
	border-left: 1.1em solid #ff00ff;
	-webkit-transform: translateZ(0);
	-ms-transform: translateZ(0);
	transform: translateZ(0);
	-webkit-animation: load8 1.1s infinite linear;
	animation: load8 1.1s infinite linear;
}
@-webkit-keyframes load8 {
	0% {
		-webkit-transform: rotate(0deg);
		transform: rotate(0deg);
	}
	100% {
		-webkit-transform: rotate(360deg);
		transform: rotate(360deg);
	}
}
@keyframes load8 {
	0% {
		-webkit-transform: rotate(0deg);
		transform: rotate(0deg);
	}
	100% {
		-webkit-transform: rotate(360deg);
		transform: rotate(360deg);
	}
}
</style>

<!-- js -->
<script src="js/jquery-1.11.2.min.js"></script>
<script src="js/three/three.min.js"></script>
<script src="js/three/DeviceOrientationControls.js"></script>
<script src="js/three/OrbitControls.js"></script>
<script src="js/three/Detector.js"></script>

<script src="js/panoramaViewer.js"></script>
<script>
jQuery(function(){
	$(window).on("load",function(){
		var rand=Math.floor(Math.random()*10000);
		$("#canvas_main").panoramaViewer({
			src       : "./src/texture.jpg?"+rand,
			src_pre   : "./src/texture_s.jpg?"+rand,
			rotationY : -50,
			camera    : {
				fov : 60,
			}
		});
	});
});
</script>

</head>
<body>
<div class="canvas_box">
  <canvas id="canvas_main"></canvas>
  <div class="canvas_loader" id="canvas_loader"></div>
</div>
</body>
</html>