Webview2 not able to upload stream more than 65MB stream in "CoreWebView2.Environment.CreateWebResourceResponse(stream, 200, "OK", string.Empty);"

[SajidMemon44]

Hi,

I am using webview2 , i want to send file using "CoreWebView2.Environment.CreateWebResourceResponse(stream, 200, "OK", string.Empty);" file size is more than 70MB it was cause error

at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
at System.Windows.Application.RunDispatcher(Object ignore)
at System.Windows.Application.RunInternal(Window window)
at System.Windows.Application.Run(Window window)
at System.Windows.Application.Run()
at WinProjectE.App.Main()

System.Runtime.InteropServices.SEHException
HResult=0x80004005
Message=External component has thrown an exception.
Source=
StackTrace:

Method used :

private void CoreWebView2_WebResourceRequested(object sender, CoreWebView2WebResourceRequestedEventArgs e)
{
if (e.Request.Uri.Contains("/XXX/XXX/XXX/XXX/", StringComparison.OrdinalIgnoreCase))
{
string filename = Path.GetFileName(e.Request.Uri);
string filePath = Path.Combine(App.oGlobalInput.TempDirectory, filename);

                if (File.Exists(filePath))
                 {
                            FileStream stream = File.OpenRead(filePath);
                            e.Response = parent.webView.CoreWebView2.Environment.CreateWebResourceResponse(stream, 200, "OK", 
                               string.Empty);
               }
                else
                {
                            e.Response =
                               parent.webView.CoreWebView2.Environment.CreateWebResourceResponse(null, 404, "File not found", string.Empty);
                }
      }

}

We try this approach as well but still same error : https://learn.microsoft.com/en-us/microsoft-edge/webview2/concepts/working-with-local-content?tabs=dotnetcsharp

[mdCllang]

We run in the exact the same issue as you descripe.
Some additional Infos:

We use WPF, NetFramework 4.8,
Nuget: Microsoft.Web.WebView2: Versions tested: 1.0.1823.32 and 1.0.2151.40 (latest at moment of posting)

TestPC runs on Windows 11:
WebView2 Runtime: 128.0.2739.79 (latest at moment of posting)

Any suggestions or ideas how to fix it would be nice.