<script>
    window.addEventListener('error', function(event){
        var target = event.target || event.srcElement;
        var isElementTarget = target instanceof HTMLScriptElement || target instanceof HTMLLinkElement || target instanceof HTMLImageElement;
        if(isElementTarget && target.rel !== 'prefetch'){
          var typeName = target.localName;
          var sourceUrl =  target.href || target.src;
          _czc.push(['_trackEvent', '模板加载失败?', '页面加载', sourceUrl])
        }
      }, true);
  </script>