[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

[sivMSFT]

Hi @aimcosoftware,

Could you please:

1. Double-check that your DOMHost class has the correct attributes
2. Ensure that the CoreWebView2 instance is fully initialized before adding the host object
3. Make sure that the JavaScript code is correctly accessing the host object

Please let us know if you continue to experience any problems.

[aimcosoftware]

Yes have done all that, I did include the code, but have a workaround now using Messages.