Adding passes to Wallet via iPad
I understand that there is no actual Wallet app on the iPad, but as Wallet works with iCloud you should be able to add passes to Wallet on an iPad for later use with an iPhone. I've always been able to add them using my MacBook Pro, which doesn't have the Wallet app, and iCloud stores them so they appear on my iPhone. I've tried doing the same on my iPad but the pass doesn't pop up like it does on iPhone or Mac, I just get an error message saying 'Download Failed Safari cannot download this file'.
has anyone else had this problem and been able to resolve it? I've tried the usual things like restarting Safari, signing out of iCloud and back in, hard rebooting the device but I still get the same message. what I really need to find out is whether this is due to an error on my specific device or if this happens simply because the passes aren't designed to download onto iPad as they do on iPhone or Mac.
iPad Pro, iOS 9.3.1