The code below is working in the simulator and also in App Preview maar not in Build mode.
I get a blank screen when I build the App and install it on an iphone.
I have the URL 'http://www.feestartikelen.nl' on the Cordova Whitelist, under 'Network Request'.
I have no idea why the URL is not showing.
<iframe src="http://www.feestartikelen.nl/mobiel/" height="100%" width="100%"></iframe>
Henk -- I don't have access to that file. You can download the signing cert directly from within the XDK. See the "user icon" in the upper right of the XDK, where there is a download link for each cert you've got stored in your account: