VRCX/Dotnet/Cef/CefCustomDownloadHandler.cs

using CefSharp;

namespace VRCX
{
    public class CustomDownloadHandler : IDownloadHandler
    {
        public bool CanDownload(IWebBrowser chromiumWebBrowser, IBrowser browser, string url, string requestMethod)
        {
            return true;
        }

        public bool OnBeforeDownload(IWebBrowser chromiumWebBrowser, IBrowser browser, DownloadItem downloadItem, IBeforeDownloadCallback callback)
        {
            if (callback.IsDisposed)
                return true;

            using (callback)
            {
                callback.Continue(
                    downloadItem.SuggestedFileName,
                    showDialog: true
                );
            }

            return true;
        }

        public void OnDownloadUpdated(IWebBrowser chromiumWebBrowser, IBrowser browser, DownloadItem downloadItem, IDownloadItemCallback callback)
        {
        }
    }
}