 click_tracking: true
    });
    woopra.track();
</script>
<script>
    if (navigator.serviceWorker != null) {
        navigator.serviceWorker.register('/sw.js')
        .then(function(registration) {
            console.log('Registered events at scope: ', registration.scope);
        });
    }
</script>
<title>加载中LOADING...</title>
<style type="text/css">
body{background:#555}.loading{-webkit-animation:fadein 2s;-moz-animation:fadein 2s;-o-animation:fadein 2s;animation:fadein 2s}@-moz-keyframes fade