one possible workaround: send from your page samplexxx a heartbeat to
the top page (remember the time of the last heartbeat). then you can
check this value.
if this value is too long not updated, then the iframe have a
different content.
On 1 Sep., 22:29, Jayant <[EMAIL PROTECTED]> wrote:
> Hello,
>
> I am trying to create an application where I have to watch the
> location and content of an iframe. I wrote a simple prototype where a
> top page contains 2 iframes. One is used for the real content and one
> just contains a script that watches the content iframe. Now as long as
> the pages in the iframe are coming from the same server, this works.
> However when the user navigates to a page from another server, the
> scheme fails. I cannot stop the user from going to any other page in
> that iframe. I only need to know where the iframe is pointing to. I
> have gone through a numerous references on the cross domain security
> and there does not seem to be an answer to this. I have two questions:
> 1. Is this impossible to resolve in pure javascript. May be there is
> some scheme used by portlets that could help and 2. Can use of flash /
> flex help get over this problem.
>
> Following is the code for the four files in the little prorotype.
>
> ------------------main.html-------------------
> <html>
> <head>
> <title>Main Co-Browser Page</title>
> <script language="javascript">
> function getContentURL()
> {
> d = document;
> f = d.frames ? d.frames['content'] : d.getElementById('content');
> var url = "";
> try
> {
> if (f.getCurrentLocation)
> {
> url = f.getCurrentLocation();
> }
> else if (f.contentWindow.getCurrentLocation)
> {
> url = f.contentWindow.getCurrentLocation();
> }
> }
> catch(e)
> {
> url = "";
> }
> return url;}
>
> </script>
> </head>
> <body>
> <iframe id="content" src="sample1.html" width="100%" height="200px"></
> iframe>
> <iframe id="tracker" src="tracker.html"></iframe>
> </body>
> </html>
> ---------------------------------------------------
> ---------------------sample1.html------------------
> <html>
> <head>
> <title>Sample1</title>
> <script language="javascript">
> function getCurrentLocation()
> {
> return document.location;}
>
> </script>
> </head>
> <body>
> <p>This is page sample 1
> <p><a href="sample2.html">Sample2</a>
> <p><a href="http://www.google.com";>Google</a>
> </body>
> </html>
> ---------------------------------------------------
> ---------------------sample2.html------------------
> <html>
> <head>
> <title>Sample1</title>
> <script language="javascript">
> function getCurrentLocation()
> {
> return document.location;}
>
> </script>
> </head>
> <body>
> <p>This is page sample 2
> <p><a href="sample1.html">Sample1</a>
> <p><a href="http://www.yahoo.com";>Yahoo</a>
> </body>
> </html>
> ---------------------------------------------------
> ---------------------tracker.html------------------
> <html>
> <head>
> <title>Tracker</title>
> <script language="javascript">
> function test()
> {
> var frameUrl = parent.getContentURL();
> if (frameUrl == "")
> {
> alert("Content is out of scope");}
>
> else
> {
> alert('frameUrl = '+frameUrl);}
>
> setTimeout("test()", 3000);}
>
> var timerID = setTimeout("test()", 3000);
> </script>
> </head>
> <body>
> </body>
> </html>
> ---------------------------------------------------
>
> Thanks,
> -Jayant.
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