internal void EnsureLoaded(CefFrame frame)
{
var view = GetContext(frame);
if (view != null)
return;
var taskCompletionSource = new TaskCompletionSource<IWebView>();
_TaskCompletionSources.Add(frame.Identifier, taskCompletionSource);
//run dummy script to load context
frame.ExecuteJavaScript("(function(){})()", string.Empty, 0);
}