Cannot modify the currentTime of a video in HTML pag... | MicrosoftEdge/WebView2Feedback

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Description
It is not possible to advance or rewind a video when it is displayed in a web page (in a webview2) via SetVirtualHostNameToFolderMapping

Indeed, it's possible to do "play", "pause", change volume source, but not clic on timeline.
If I change currentTime with javascript the video restart in 0.

However, this same page displayed with local path, the video controler works.

I haven't error message.

Version
SDK: .NEt Framework 4.7.2
VS2019
Runtime: 1.0.864.35
Framework: WinForms
OS: Win10 (20H2)

Repro Steps
1/ Create a folder in your computer (by example "c:\test")
2/ In this folder, put a mp4 video named "video.mp4" and create a "index.html" file with this html code

<!DOCTYPE html>
<html>
	<body>
		<video style="width: 100%; height: 100%; " autoplay="" controls=""><source src="video.mp4" type="video/mp4"></video>
	</body>
</html>

3/ Create a new Project (Windows Forms Application in VB.NET)
4/ Install a package "Microsoft.Web.WebView2" via Nuget
5/ Add a "Windows Forms" in your Project (named Form1)
6/ Add a "Webview2" in Your forms (named WebView21), en change source for "about:blank"
7/ Modify Form1 code and add

Public m_alreadyinit As Boolean = False
  Public Async Sub initializeAsync()
      If WebView21.CoreWebView2 IsNot Nothing Then
          If m_alreadyinit = False Then
              m_alreadyinit = True
              WebView21.CoreWebView2.AddWebResourceRequestedFilter("*", CoreWebView2WebResourceContext.All)

              Dim opts = New CoreWebView2EnvironmentOptions With {
              .AdditionalBrowserArguments = " --disable-web-security --allow-file-access-from-files --allow-running-insecure-content"
              }
              Dim env = Await CoreWebView2Environment.CreateAsync(Nothing, "C:\test\", opts)
              Await WebView21.EnsureCoreWebView2Async(env)

              WebView21.CoreWebView2.SetVirtualHostNameToFolderMapping("myvirtualhost", "C:\test\", CoreWebView2HostResourceAccessKind.Allow)

              MyWebView2.Source = New Uri("http://myvirtualhost/test.html")
              '----> this code it's OK WebView21.Source = New Uri("file:///c:/test/test.html")
          End If
      End If
  End Sub
  Private Sub m_media_NavigationCompleted(sender As Object, e As CoreWebView2NavigationCompletedEventArgs)
      initializeAsync()
  End Sub

8/ Compile, and check, It's possible to play/pause/change volume but impossible to change currenttime
9/ If I change the WebView2 source for used "New Uri("file:///c:/test/test.html")" then the change currentime works

AB#33799172

Start with the supplied VB.NET WinForms reproduction and compare the same video page loaded through SetVirtualHostNameToFolderMapping with the file:/// URL. Check the reported play, pause, volume, timeline, and JavaScript currentTime behaviors in both cases. Done means the seeking discrepancy is explained and a maintainer-confirmed fix or limitation is documented.

Written by the indexing model from the issue text.

Cannot modify the currentTime of a video in HTML page displayed by SetVirtualHostNameToFolderMapping

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