I've tested under IE6, 7, 8, without issues.
However under current Windows releases of Chrome and Safari, the radWindow title appears for a moment when the window is created and then immediately disappears after the passed form is loaded.
The simplest example:
|var wnd = radopen("MyDialog.aspx?", null);
|wnd.set_title("My RadWindow Caption");
I've also tested with RadWindow using:
|var oWnd = $find("<%= RadWindow1.ClientID %>");
|oWnd.set_title("My Dialog Title");
with same results.
However, if I pass a URL (http://www.telerik.com
) vs a relative webform, the caption is not cleared.