<iframe id="myiframe" src="[url]" width="300"></iframe>
<script type="text/javascript">
var iframe = document.getElementById("myiframe");
iframe.onload = function(){
var html = this.contentWindow.document.documentElement
body = this.contentWindow.document.body,
//iframe页é¢çé«åº¦ä¸å®½åº¦
h = Math.max( body.scrollHeight, body.offsetHeight,
html.clientHeight, html.scrollHeight, html.offsetHeight ),
w = Math.max( body.scrollWidth, body.offsetWidth,
html.clientWidth, html.scrollWidth, html.offsetWidth);
var w = this.contentWindow.document.body.scrollWidth;
var h = this.contentWindow.document.body.scrollHeight;
this.style.width = w+30+"px";
this.style.height = h+30+"px";
};
</script>
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