// @nuget: HtmlAgilityPack

​

using System;

using HtmlAgilityPack;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

        // Load

        var html = @"<p><ul><li>test</li></ul></p>";

​

        var doc = new HtmlDocument();

        doc.LoadHtml(html);

        // ADD code to reproduce the issue here

        var documentNodeInnerHtml = doc.DocumentNode.InnerHtml;

        // Show info

        System.Console.WriteLine(documentNodeInnerHtml);

    }

}