#data
<div<div>
#errors
#document
| <html>
|   <head>
|   <body>
|     <div<div>

#data
<div foo<bar=''>
#errors
#document
| <html>
|   <head>
|   <body>
|     <div>
|       foo<bar=""

#data
<div foo=`bar`>
#errors
#document
| <html>
|   <head>
|   <body>
|     <div>
|       foo="`bar`"

#data
<div \"foo=''>
#errors
#document
| <html>
|   <head>
|   <body>
|     <div>
|       \"foo=""

#data
<a href='\nbar'></a>
#errors
#document
| <html>
|   <head>
|   <body>
|     <a>
|       href="\nbar"

#data
<!DOCTYPE html>
#errors
#document
| <!DOCTYPE html>
| <html>
|   <head>
|   <body>

#data
&lang;&rang;
#errors
#document
| <html>
|   <head>
|   <body>
|     "⟨⟩"

#data
&apos;
#errors
#document
| <html>
|   <head>
|   <body>
|     "'"

#data
&ImaginaryI;
#errors
#document
| <html>
|   <head>
|   <body>
|     "ⅈ"

#data
&Kopf;
#errors
#document
| <html>
|   <head>
|   <body>
|     "𝕂"

#data
&notinva;
#errors
#document
| <html>
|   <head>
|   <body>
|     "∉"

#data
<?import namespace="foo" implementation="#bar">
#errors
#document
| <!-- ?import namespace="foo" implementation="#bar" -->
| <html>
|   <head>
|   <body>

#data
<!--foo--bar-->
#errors
#document
| <!-- foo--bar -->
| <html>
|   <head>
|   <body>

#data
<![CDATA[x]]>
#errors
#document
| <!-- [CDATA[x]] -->
| <html>
|   <head>
|   <body>

#data
<textarea><!--</textarea>--></textarea>
#errors
#document
| <html>
|   <head>
|   <body>
|     <textarea>
|       "<!--"
|     "-->"

#data
<textarea><!--</textarea>-->
#errors
#document
| <html>
|   <head>
|   <body>
|     <textarea>
|       "<!--"
|     "-->"

#data
<style><!--</style>--></style>
#errors
#document
| <html>
|   <head>
|     <style>
|       "<!--"
|   <body>
|     "-->"

#data
<style><!--</style>-->
#errors
#document
| <html>
|   <head>
|     <style>
|       "<!--"
|   <body>
|     "-->"

#data
<ul><li>A </li> <li>B</li></ul>
#errors
#document
| <html>
|   <head>
|   <body>
|     <ul>
|       <li>
|         "A "
|       " "
|       <li>
|         "B"

#data
<table><form><input type=hidden><input></form><div></div></table>
#errors
#document
| <html>
|   <head>
|   <body>
|     <input>
|     <div>
|     <table>
|       <form>
|       <input>
|         type="hidden"

#data
<i>A<b>B<p></i>C</b>D
#errors
#document
| <html>
|   <head>
|   <body>
|     <i>
|       "A"
|       <b>
|         "B"
|     <b>
|     <p>
|       <b>
|         <i>
|         "C"
|       "D"

#data
<div></div>
#errors
#document
| <html>
|   <head>
|   <body>
|     <div>

#data
<svg></svg>
#errors
#document
| <html>
|   <head>
|   <body>
|     <svg svg>

#data
<math></math>
#errors
#document
| <html>
|   <head>
|   <body>
|     <math math>