Notifications do not work correctly

[brendrch]

What happened?

I use Webview2 version 1.0.2957.106 with C# and load a web site over https which use push notifications.
It works correctly with Chrome, Firefox and Edge browsers but not with WebView2.

On the Javascript side the notifications are initiated by registering a service worker with

navigator.serviceWorker.register

this works correctly

The subscrition to push notifications with

ServiceWorkerRegistration.pushManager.subscribe({
   userVisibleOnly: true,
  applicationServerKey: urlBase64ToUint8Array(_publicKey),

causes the exception AbortError Registration failed - push service error

Before the subscription is called, a check for the permissinon is made by

if (Notification.permission === 'granted')

On the C# side there is a permission request callback which allows the notification request

private void PortalWebView_PermissionRequested(object sender, CoreWebView2PermissionRequestedEventArgs e)
{
  var def = e.GetDeferral();
  e.State = CoreWebView2PermissionState.Allow;
  e.Handled = true;
  def.Complete();
}

I have reset all permissions to default when the page is loaded by

await portalWebView.CoreWebView2.Profile.SetPermissionStateAsync(CoreWebView2PermissionKind.Camera, m_portalUrl, @CoreWebView2PermissionState.Default);
await portalWebView.CoreWebView2.Profile.SetPermissionStateAsync(CoreWebView2PermissionKind.Microphone, m_portalUrl, @CoreWebView2PermissionState.Default);
await portalWebView.CoreWebView2.Profile.SetPermissionStateAsync(CoreWebView2PermissionKind.Notifications, m_portalUrl, @CoreWebView2PermissionState.Default);

If the permissions are set as e.State = CoreWebView2PermissionState.Default; no popup asking the user for notification permission is displayed (for camera and mic permissions a popup is shown).

I assume, that the allowance of the notification permission by code does not work correctly since no popup is displayed and no user interaction is requested (the Edge browser does not show a popup neither, the notification permission must be set here interactively to make the web site work)

Importance

Important. My app's user experience is significantly compromised.

Runtime Channel

Stable release (WebView2 Runtime)

Runtime Version

1.0.2957.106

SDK Version

1.0.2957.106

Framework

Winforms

Operating System

Windows 11

OS Version

26100.2894

Repro steps

Please see descritpion under "What happened".
The web site which is called is https://test.mypoi3d.com.
The notification is initiated after a login (if needed i can create one for you)

Repros in Edge Browser

No, issue does not reproduce in the corresponding Edge version

Regression

No, this never worked

Last working version (if regression)

No response

[dhveerap]

@brendrch could you provide repro in this sample app https://github.com/MicrosoftEdge/WebView2Samples/tree/main/SampleApps/WebView2WindowsFormsBrowser

[brendrch]

Hello, i am currently on holiday and will provide samples at the end of February Best regards Am 05.02.2025 um 14:51 schrieb Akhila Veerapuraju ***@***.***>: @brendrch could you provide repro in this sample app https://github.com/MicrosoftEdge/WebView2Samples/tree/main/SampleApps/WebView2WindowsFormsBrowser —Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you were mentioned.Message ID: ***@***.***>

[brendrch]

Hello, I have created a reproducible Sample at https://mypoi3d.com/PushTest/src/index.html (it is based on the code from https://github.com/Minishlink/web-push-php-example) ### Edge behavior: If you open the sample URL in Edge and press the “Enable Push notifications” you will see a “Loading…” button which does no query the Notification-Permission although it is set to ask.  You must explicitly enable the Notification-Permission in the site settings.  After that you can enable the Push Notifications with the web site button and send a push notification. It is shown in the console output  ### WebView2 behavior In the WebView2WindowsFormsBrowser Sample the button shows a “Push notifications are not compatible with this browser” information.  If you explicitly allow the permissions and add an event handler for permission requests, it still does not work and you get the above-mentioned exception ``` private void WebView2Control_CoreWebView2InitializationCompleted(object sender, CoreWebView2InitializationCompletedEventArgs e) { if (!e.IsSuccess) { MessageBox.Show($"WebView2 creation failed with exception = {e.InitializationException}"); UpdateTitleWithEvent("CoreWebView2InitializationCompleted failed"); return; } // Setup host resource mapping for local files this.webView2Control.CoreWebView2.SetVirtualHostNameToFolderMapping("appassets.example", "assets", CoreWebView2HostResourceAccessKind.DenyCors); this.webView2Control.Source = new Uri(GetStartPageUri(this.webView2Control.CoreWebView2)); this.webView2Control.CoreWebView2.SourceChanged += CoreWebView2_SourceChanged; this.webView2Control.CoreWebView2.HistoryChanged += CoreWebView2_HistoryChanged; this.webView2Control.CoreWebView2.DocumentTitleChanged += CoreWebView2_DocumentTitleChanged; this.webView2Control.CoreWebView2.AddWebResourceRequestedFilter("*", CoreWebView2WebResourceContext.Image, CoreWebView2WebResourceRequestSourceKinds.Document); this.webView2Control.CoreWebView2.ProcessFailed += CoreWebView2_ProcessFailed; this.webView2Control.CoreWebView2.FrameCreated += WebView_HandleIFrames; UpdateTitleWithEvent("CoreWebView2InitializationCompleted succeeded"); //added !!!!!!!!!!!!!!!!!! this.webView2Control.CoreWebView2.Profile.SetPermissionStateAsync(CoreWebView2PermissionKind.Notifications, "https://mypoi3d.com/PushTest/src/index.html", @CoreWebView2PermissionState.Allow); this.webView2Control.CoreWebView2.PermissionRequested += WebView_PermissionRequested; EnableButtons(); } private void WebView_PermissionRequested(object sender, CoreWebView2PermissionRequestedEventArgs e) { e.State = CoreWebView2PermissionState.Allow; } ```