[Problem/Bug]: AddHostObjectToScript doesn't add to chrome.webview.hostObjects

[aimcosoftware]

What happened?

I have a very simple project in Vb.Net 4.6.2, AddHostObjectToScript doesn't throw an error, but the object is not added to the JS side. Are there any known issues with this?

<ClassInterface(ClassInterfaceType.AutoDual)>
<ComVisible(True)>
Public Class DOMHost
	Sub connectHost(Msg As String)
	End Sub
End Class

Private Host as New DOMHost
Private Sub Browser_CoreWebView2InitializationCompleted(sender As Object, e As CoreWebView2InitializationCompletedEventArgs) Handles Browser.CoreWebView2InitializationCompleted
		Core = Browser.CoreWebView2
		Core.AddHostObjectToScript("DOMHost", Host)
		Core.AddScriptToExecuteOnDocumentCreatedAsync(My.Resources.DOM_Main_min)
	End Sub

Importance

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

Runtime Channel

Stable release (WebView2 Runtime)

Runtime Version

130.0.2849.56

SDK Version

1.0.2.2849.39

Framework

Winforms

Operating System

Windows 10

OS Version

10.0.19045

Repro steps

Nothing added to chrome.webview.hostObjects

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