window.opener.returnValue in Chrome with showModalDialog
I am trying to use window.opener.returnValue with showModalDialog. There are numerous references to a technique which can be used to workaround window.returnValue not working. However it just doesn’t seem to work in Version 23.0.1271.97 of Chrome.
If I comment out the self.close line as follows, and put alerts in before and after the return value is set then both alerts show as ‘undefined’:
The caller a1.html
<html>
<head>
<base target="_self"/>
<script>
function fu()
{
window.returnValue = undefined;
var result = window.showModalDialog("b1.html", window, "dialogHeight:650px; dialogWidth:900px;");
if (result == undefined)
result = window.returnValue;
if (result != null && result != "undefined")
text.value = result;
}
</script>
</head>
<body>
<input type=button value="click me" onclick="return fu();">
<input type=text id=text>
</body>
</html>
The called b1.html:
<html>
<head>
<base target="_self"/>
<script>
function fu()
{
var text = document.getElementById("text");
if (window.opener)
{
alert(window.opener.returnValue);
window.opener.returnValue = "your return value";
alert(window.opener.returnValue);
}
text.value = window.opener.returnValue;
//self.close();
}
</script>
</head>
<body>
<input type=button value="close" onclick="return fu();">
<input type=text id=text>
</body>
</html>
Answer
Also window.returnValue will work only when both "modal dialog window" and "parent window(which opened the dialog)" are hosted in the same server. If not it will return undefined only.