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>