I have tried several ways to embed a webview. Before iOS 14 it worked without problems with an iframe. But since iOS 14 and Intelligent Tracking Prevention (ITP) cookies no longer work.
<preference name="hostname" value="domain1.com" />
Using inAppBrowser with target ‘_self’ cookies work fine for both urls. However I need to access native APIs or postMessage and it doesn’t work on iOS.
Do you have an idea to solve the problem?