Need Webview2 browser policy to enable Kerberos delegation

I am the responsible developer for the Edge control in SAP Business Client. Our customers expect that they can use the same SSO mechanisms in our product as in standalone Edge or Chrome. Some applications, like SAP BI, use SPNEGO/Kerberos delegation. For security reasons, that feature is by default disabled in chromium based browsers, so an allow list has to be provided in the browser policy "AuthNegotiateDelegateAllowlist".

https://docs.microsoft.com/en-us/deployedge/microsoft-edge-policies#authnegotiatedelegateallowlist

Webview2 ignores Edge browser policies and currently doesn't contain that policy in it's own set of policies. Previous chromium versions offered the command line switch "–auth-negotiate-delegatewhitelist", but afaik it has been removed. So currently we have no chance to pass the allow list.

Please either add "AuthNegotiateDelegateAllowlist" to the set of Webview2 browser policies, or provide an API to set the list programmatically. Maybe it would be a good idea to also cover the full set of Edge Http authentication policies:

https://docs.microsoft.com/en-us/deployedge/microsoft-edge-policies#http-authentication

AB#44690405