Would someone please address this issue! I also have new iPads with 15.4.1 which won't run our web app. iPads with 15.3.1 work fine, as well as Android and Windows. I don't think there is any setting we have tried in the OS. The sessionID cookies are tossed by Safari and Chrome in the new iPads, rendering our app unusable even though it's calling pages from the same domain and session. These new iPads expensive are useless to us without a resolution. We have tried everything we can find in this ASP.net configuration to make sure cookies can be shared and are secure.