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using window.opner in jscript problem

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  #1  
Old July 8th, 2004, 12:59 PM
tonywang tonywang is offline
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using window.opner in jscript problem
Hi, guys,
I got a weired problem when trying to use the window.opener object. I need to open a new window from a home page, and once I get into the new window(it's actually on another site), I need to get the url of the calling window(the window that opened the current window). I can use the window.opener.location.href to set a new url for the old window, for example
<script language="JavaScript">
<!--
function getURL()
{

if (window.opener) {
alert("This window was opened by another window.");
window.opener.location.href="www.yahoo.com";
window.close();
}
else{
alert("This window was not opened by any other windows.");
}
}
//-->
</script>

which does work. Now the weired thing is that, when I try to get the value of the old window's URL like that:
<script language="JavaScript">
<!--
function getURL()
{

if (window.opener) {
alert("This window was opened by another window.");
var myOpener = window.opener.location.href;
//doing something here with the myOpener
//
}
else{
alert("This window was not opened by any other windows.");
}
}
//-->
</script>
The program just won't work. Somebody got a feel on that? thanks in advance!
Tony
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  #2  
Old July 8th, 2004, 01:03 PM
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selwonk selwonk is offline
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What happens if you just use:

Code:
var myOpener = opener.location.href;


MK
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  #3  
Old July 8th, 2004, 01:08 PM
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selwonk selwonk is offline
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Actually, this works equally well:

Opener

Code:
<html>
<head>
<title>PopUp 1</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<script language="JavaScript">
<!--
function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}
//-->
</script>
</head>
<body bgcolor="#FFFFFF" text="#000000">
Create popup window <a href="#" onClick="MM_openBrWindow('pop2.html','PopUp','width=250,hei  ght=250')">here</a> 
</body>
</html>


Popup

Code:
<html>
<head>
<title>PopUp 2</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<div id="Wrapper"></div>
<script language="JavaScript">Wrapper.innerHTML=opener.location;</script>
</body>
</html>


MK
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  #4  
Old July 8th, 2004, 01:10 PM
tonywang tonywang is offline
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No, it still doesn't work. Thanks though!

Tony
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  #5  
Old July 8th, 2004, 01:15 PM
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selwonk selwonk is offline
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Yep - it won't work across domains by the looks of things. This appears to be "by design" in order to protect cross-frame security

MK
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  #6  
Old July 8th, 2004, 01:22 PM
tonywang tonywang is offline
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[QUOTE=selwonk]Actually, this works equally well:

still not working, what could be the problem?
Tony
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  #7  
Old July 8th, 2004, 01:24 PM
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selwonk selwonk is offline
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Quote:
Originally Posted by selwonk
Yep - it won't work across domains by the looks of things. This appears to be "by design" in order to protect cross-frame security

MK

I don't think you can do it. You might try adding the URL to a field in the original page and then trying to read it?

MK
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  #8  
Old July 8th, 2004, 01:30 PM
selwonk's Avatar
selwonk selwonk is offline
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Quote:
Originally Posted by selwonk
I don't think you can do it. You might try adding the URL to a field in the original page and then trying to read it?

MK

Nope - cross-domain security appears to stop you doing this as well

MK
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  #9  
Old July 8th, 2004, 02:28 PM
tonywang tonywang is offline
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Quote:
Originally Posted by selwonk
Nope - cross-domain security appears to stop you doing this as well

MK

Yeah, I think that is the case. Thanks a lot guys.
Tony
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