Hi Penta,
Restricted by browser security, javascript must not be allowed to close a window that was not opened by that same javascript, that’s why it jumps to the about:blank page after the IWA application is started successfully.
If you don’t want to go to the about:blank page, please follow the steps below.
1. Open %web server machine%\%your application%\connectiwarunner.html, such as C:\inetpub\wwwroot\sales\connectiwarunner.html.
2. Comment out the following code so that it stays in the iwarunner.html page after the application starts, or you can change "about:blank" to your page.
parent.document.location.href = "about:blank";
3. Clear browser cache on the client machine, or at least you need to clear 'Cached images and files'.
Regards,
Kai