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问题:

i'm using following page to display content of a url in a iframe and changing it based on input value .

<html>
<head>
<script type="text/javascript">
function changeUrl()
{
 var url=document.getElementById('browseurl').value;
 if(url!="")
 {
   if(url.indexOf("http")==-1)
   {
    url="http://"+url;
   }
   document.getElementById('browserWnd').src=url;
 }
}
</script>
</head>

<body>
 <div >
   <span>Url</span> 
   <input id="browseurl" name="browseurl" type='textbox' />
   <input id="browse" type='button' value="changeurl" onclick="changeUrl()" />
 </div>

<iframe id="browserWnd" src="http://www.coolmath.com/" height="700" width="625"></iframe>
</div>
</body>
</html>

my problem is browsing some inner pages of an url loaded in iframe changes the parent window url instead of loading in iframe ...

for ex http://www.coolmath.com/ load in iframe but while browsing some links loads the entire page in parent window.

回答1:

From www.coolmath.com:

if (window.self != window.top) ...

meaning the site activly escapes being framed.

回答2:

You may notice that even something like this <iframe src='http://www.coolmath-games.com/0-fraction-splat/index.html'></iframe> results in the same. This is a technique called frame-busting. It's in their page's code:

<script>
<!-- Hide Script
 if (top.location != self.location) {
   top.location = self.location
 }
//End Hide Script-->
</script>

If you have a server, that can respond with a HTTP/1.1 204 No Content header, you may be able to "deactivate" this frame buster as described here.

changing iframe url changes parent window url

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回答2:

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changing iframe url changes parent window url

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