node.onload = null;
body.removeChild(node);
node = null;
};
var hide = function(e){
clearTimeout(timer);
clear(e, false);
};
window.addEventListener('pagehide', hide, true);
window.addEventListener('pageshow', hide, true);
node.onload = clear;
node.src = url;
body.appendChild(node);
var now = +new Date();
//如果事件失败,则1秒设置为空
timer = setTimeout(function(){
timer = setTimeout(function(){
var newTime = +new Date();
if(now-newTime>1300){
clear(null, false);
}else{
clear(null, true);
}
}, 1200);
}, 60);
}
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