2 seconds delay is seen with Page navigation using WebView2 & SetVirtualHostNameToFolderMapping

Description
When we load a local page using SetVirtualHostNameToFolderMapping and the domain is non-existent we see a 2 secondsdelay in the page navigation to complete.

Version
SDK: 1.0.1185.39
Runtime: 100.0.1185.44
Framework: WPF
OS: Win10

Repro Steps

1. Create a sample WPF Application
2. Create WebView2 instance and add it to a WPF grid.
3. Set CoreWebView2.SetVirtualHostNameToFolderMapping to a virtual host name and folder consisting of sample HTML page.
4. Register NavigationStarting and NavigationCompleted events and log the timestamps.
5. Load the sample HTML Page inside the WebView.
6. Run the application.

Note that the page loads after 2 seconds delay. That can be seen by taking the difference in timestamps logged in NavigationCompleted and NavigationStarting events.

Workaround
If we add a host file entry mapping valid IP address (machine's IP) and virtual hostname (provided in SetVirtualHostNameToFolderMapping), the page loads fine without any delay.

Additional context
It looks like it is trying to reach the host and causes the timeout.

AB#39415297