Sample of how referencing setTimeout in a VroomJs context causes an error

VroomJsTimeout.cs

/* Sample of how referencing setTimeout in a VroomJs context causes an
   error.
   
   Tested with NuGet package VroomJs 1.2.3 */

using VroomJs;

class Program
{
    static void Main(string[] args)
    {
        AssemblyLoader.EnsureLoaded();

        using (var js = new JsEngine())
        using (var context = js.CreateContext())
        {
            /* f1() will work because setTimeout, which is not availablve
               within the VroomJs context, is only referenced by the inner
               function which is not executed.
               
               f2() will fail because the 'var x = setTimeout' line yields a
               reference error when executed. */
            context.Execute(@"
                function f1() {
                    return function() {
                        setTimeout(function() {}, 1);
                    }
                }

                function f2() {
                    var x = setTimeout;
                    return function() {
                        x(function() {}, 1);
                    }
                }");

            context.Execute("f1();");
            context.Execute("f2();");
        }
    }
}