[Problem/Bug]: Edge webview doesn't fallback to default implementation of showing certificate dialog if clientcertificaterequested event is subscribed

[RSN1907]

What happened?

In our WPF Application which uses Edge webview ,we subscribe to ClientCertificateRequested Event and its implmentation is as below

void CoreWebView2_ClientCertificateRequested(object sender, CoreWebView2ClientCertificateRequestedEventArgs e)
{
e.Handled = false;

       IReadOnlyList<CoreWebView2ClientCertificate> certificateList = e.MutuallyTrustedCertificates;

}
Once this is implemented though handled is set to false ,its not falling back to default certification prompt
However if the event is not subscribed it would show certificate prompt and work as usual

Importance

Blocking. My app's basic functions are not working due to this issue.

Runtime Channel

Stable release (WebView2 Runtime)

Runtime Version

122.0.2365.52

SDK Version

1.0.2277.86

Framework

WPF

Operating System

Windows 10

OS Version

22H2

Repro steps

In our WPF Application which uses Edge webview ,we subscribe to ClientCertificateRequested Event and its implmentation is as below

void CoreWebView2_ClientCertificateRequested(object sender, CoreWebView2ClientCertificateRequestedEventArgs e)
{
e.Handled = false;

       IReadOnlyList<CoreWebView2ClientCertificate> certificateList = e.MutuallyTrustedCertificates;

}
Once this is implemented though handled is set to false ,its not falling back to default certification prompt
However if the event is not subscribed it would show certificate prompt and work as usual

I would like to know why default implementation is not getting called even though handled is set to false

If any logs need to be collected kindly let me know

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

[RSN1907]

Issue is resolved