Hi Kain-1742,
The link explains that WebView2 is still in active development, and does not yet have a cookies API.
It is recommended to handle the WebResourceRequested event and then setting a cookie by amending the request.Header from inside the WebResourceRequested event handler.
There are some code examples has been provided in the threads below you can refer to.
Set cookies for WebView2, in WebResourceRequested event
How to set cookies to WebView2 control in c#?
Best Regards,
Daniel Zhang
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