I also encountered a similar problem in the official version of iOS 18, the manifestation is that the document.cookie can't get the cookie set by the webview, but the cookie of the html request header has these cookies, is there a solution?
astronomer
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution