Application not saving session information after updating to iOS SDK 14

Hello,
My team is having an issue with our app which we created after this iOS SDK 14 update, it has content inside an iframe, and the iframe has some session data that need to use across pages, however, the data is not passing between the pages anymore inside the iframe, which used to work on iOS 13.2. We also updated to the latest cordova-ios version, but still the framed web content can’t carry the session data to next page with the new build.