iOS 26 Webview and alert issue

Hello,

In iOS 26 beta, we are seeing an unexpected behavior when using SwiftUI WebView (or a custom WKWebView via UIViewRepresentable).

When an alert is presented above the WebView, the WebView immediately reloads to its initial page. The alert itself also disappears instantly, making it impossible for the user to interact with it.

This issue occurs both with the new SwiftUI WebView / WebPage API and with a wrapped WKWebView. The problem was not present in previous iOS versions (iOS 17/18).

Steps to reproduce:

Create a SwiftUI view with a WebView (pointing to any URL).

Add a toolbar button that toggles a SwiftUI alert.

Run the app on iOS 26 beta.

Tap the button to trigger the alert.

Expected behavior: The WebView should remain as-is, and the alert should stay visible until the user dismisses it.

Actual behavior: As soon as the alert appears, the WebView reloads and resets to the initial page. The alert disappears immediately.

Minimal Example:

struct ContentView: View {
    @State private var showAlert = false

    var body: some View {
        NavigationStack {
            WebView(URL(string: "https://apple.com")!)
                .toolbar {
                    ToolbarItem(placement: .topBarTrailing) {
                        Button("Close") {
                            showAlert = true
                        }
                    }
                }
                .alert("Confirm close?", isPresented: $showAlert) {
                    Button("Cancel", role: .cancel) {}
                    Button("Close", role: .destructive) {}
                }
        }
    }
}

I'm using Xcode Version 26.0 beta 7

Thanks for your help.