MicrosoftEdge / MicrosoftEdge/WebView2Feedback

CreateCoreWebView2Controller fails to create controller in multiple windows

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@champnic is already working on this.

Since Mar 23, 2022.

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Description

I did a tiny modification to the HelloWebView.cpp from the WebView2 sample code in a C++/Win32 application.

It's fine if i only create one window instance. But when creating a 2nd instance in another toplevel window the callback will not receive a controller but always ERROR_INVALID_STATE. It only works when i close the 1st instance toplevel window before opening the second.

Creating a single toplevel window with both instances side by side works fine with the same code.
Giving the toplevels each it's own window thread does not help anything.

The sample code is using:

Microsoft.Web.WebView2.1.0.902.49
Microsoft.Windows.ImplementationLibrary.1.0.191107.2

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