我正在按照此处的说明尝试跨站点 iframe 调整大小，但 iframe 仍然未调整大小。我不确定我做错了什么。
iframe 当前位于http: //ayeoui.com/testerpage.php 。这会调用博客文章，该文章会在主 ayeoui.com 域上加载“helper.html”页面，理论上应该将信息传递回第一页并触发调整大小。主站点上的代码是这样说的：
<script>
// Resize iframe to full height
function resizeIframe(height)
{
// "+60" is a general rule of thumb to allow for differences in
// IE & and FF height reporting, can be adjusted as required..
document.getElementById('iframeid').height = parseInt(height)+60;
}
</script>
<iframe id='iframeid' src='http://rinich.com/blog/11/index.html'></iframe>
链接页面上又写有以下代码：
<body onload="iframeResizePipe()">
<iframe id="helpframe" src='' height='0' width='0' frameborder='0'></iframe>
<script type="text/javascript">
function iframeResizePipe()
{
// What's the page height?
var height = document.body.scrollHeight;
// Going to 'pipe' the data to the parent through the helpframe..
var pipe = document.getElementById('helpframe');
// Cachebuster a precaution here to stop browser caching interfering
pipe.src = 'http://www.ayeoui.com/helper.html?height='+height+'&cacheb='+Math.random();
}
</script>
最后，这将我们带到帮助页面：
<html>
<!--
This page is on the same domain as the parent, so can
communicate with it to order the iframe window resizing
to fit the content
-->
<body onload="parentIframeResize()">
<script>
// Tell the parent iframe what height the iframe needs to be
function parentIframeResize()
{
var height = getParam('height');
// This works as our parent's parent is on our domain..
parent.parent.resizeIframe(height);
}
// Helper function, parse param from request string
function getParam( name )
{
name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
var regexS = "[\\?&]"+name+"=([^&#]*)";
var regex = new RegExp( regexS );
var results = regex.exec( window.location.href );
if( results == null )
return "";
else
return results[1];
}
</script>
</body>
</html>
然而测试页面并没有改变！显然我做错了什么，但我不确定是什么。发生了什么？