Please support self close script

Bug Report

Prerequisites

• Can you reproduce the problem in a MWE?
• Are you running the latest version of AngleSharp?
• Did you check the FAQs to see if that helps you?
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Description

Please support some self close tag such as script and title. I know that is nonstandard writing. But there are quite a lot of things like that in the Internet and most of modern browsers (Firefox, Chrome, MSIE) can parse that.

Steps to Reproduce

<del>

1. run code

    //Create a new context for evaluating webpages with the default config
    var context = BrowsingContext.New(Configuration.Default);

    //Create a document from a virtual request / response pattern
    var document = await context.OpenAsync(req => req.Content("<script/><ul><li>First item<li>Second item<li class='blue'>Third item!<li class='blue red'>Last item!</ul>"));

    //Do something with LINQ
    var blueListItemsLinq = document.All.Where(m => m.LocalName == "li" && m.ClassList.Contains("blue"));

</del>

Expected behavior: get the blueListItemsLinq Actual behavior: blueListItemsLinq’s count is 0

Possible Solution

[FlorianRappl]

One last remark @yinyue200 - just that I closed this issue (bug) does not mean I am opposed to having XHTML support (as a feature) in there. Maybe AngleSharp.Xml can have / provide support for this?

I would love to see support for scenarios such as the outlined one. I am right now not sure if it already works out of the box (e.g., when incl. AngleSharp.Xml with WithXml() in the config) [I guess it does not], but it should (i.e., would be ideal to) just work.

[FlorianRappl]

@yinyue200 This is a different element (your OP used the standard script element).

That is not the script element from HTML, but an XHTML element. AngleSharp does not support the XHTML DTO.