Fails a basic test case #28
Description
var san = HtmlSanitizer.SimpleHtml5Sanitizer();
foreach (var t in "p br i b tt strong".Split(" "))
{
san.Tag(t).RemoveEmpty();
}
var s = san.Sanitize("<html><script src=\"abc\"><body><p>ABC<b>abc</b><p>XYZ<b>xyz</p><u><li>abc<li>xyz</li></body></html>");
returns an empty string. Does your class sanitize not HTML documents but HTML fragments? This is not very useful when HTML comes from external sources beyond our control because it would then require preliminary stripping of
<html>, <head>, <body>
etc containers.