#data

    </plaintext>
    #errors
    11: Start tag seen without seeing a doctype first. Expected “<!DOCTYPE html>”.
    23: End of file seen and there were open elements.
    11: Unclosed element “plaintext”.
    #document
    | <html>
    |   <head>
    |   <body>
    |     <plaintext>
    |       "</plaintext>"

    #data
    <!doctype html><plaintext></plaintext>
    #errors
    (1,38): expected-closing-tag-but-got-eof
    #document
    | <!DOCTYPE html>
    | <html>
    |   <head>
    |   <body>
    |     <plaintext>
    |       "</plaintext>"

    #data
    <!doctype html><html><plaintext></plaintext>
    #errors
    44: End of file seen and there were open elements.
    32: Unclosed element “plaintext”.
    #document
    | <!DOCTYPE html>
    | <html>
    |   <head>
    |   <body>
    |     <plaintext>
    |       "</plaintext>"

    #data
    <!doctype html><head><plaintext></plaintext>
    #errors
    44: End of file seen and there were open elements.
    32: Unclosed element “plaintext”.
    #document
    | <!DOCTYPE html>
    | <html>
    |   <head>
    |   <body>
    |     <plaintext>
    |       "</plaintext>"

    #data
    <!doctype html><html><noscript><plaintext></plaintext>
    #errors
    42: Bad start tag in “plaintext” in “head”.
    54: End of file seen and there were open elements.
    42: Unclosed element “plaintext”.
    #script-off
    #document
    | <!DOCTYPE html>
    | <html>
    |   <head>
    |     <noscript>
    |   <body>
    |     <plaintext>
    |       "</plaintext>"

    #data
    <!doctype html></head><plaintext></plaintext>
    #errors
    45: End of file seen and there were open elements.
    33: Unclosed element “plaintext”.
    #document
    | <!DOCTYPE html>
    | <html>
    |   <head>
    |   <body>
    |     <plaintext>
    |       "</plaintext>"

    #data
    <!doctype html><body><plaintext></plaintext>
    #errors
    44: End of file seen and there were open elements.
    32: Unclosed element “plaintext”.
    #document
    | <!DOCTYPE html>
    | <html>
    |   <head>
    |   <body>
    |     <plaintext>
    |       "</plaintext>"

    #data
    <!doctype html><table><plaintext></plaintext>
    #errors
    (1,33): foster-parenting-start-tag
    (1,45): foster-parenting-character
    (1,45): eof-in-table
    #document
    | <!DOCTYPE html>
    | <html>
    |   <head>
    |   <body>
    |     <plaintext>
    |       "</plaintext>"
    |     <table>

    #data
    <!doctype html><table><tbody><plaintext></plaintext>
    #errors
    (1,40): foster-parenting-start-tag
    (1,41): foster-parenting-character
    (1,52): eof-in-table
    #document
    | <!DOCTYPE html>
    | <html>
    |   <head>
    |   <body>
    |     <plaintext>
    |       "</plaintext>"
    |     <table>
    |       <tbody>

    #data
    <!doctype html><table><tbody><tr><plaintext></plaintext>
    #errors
    (1,44): foster-parenting-start-tag
    (1,56): foster-parenting-character
    (1,56): eof-in-table
    #document
    | <!DOCTYPE html>
    | <html>
    |   <head>
    |   <body>
    |     <plaintext>
    |       "</plaintext>"
    |     <table>
    |       <tbody>
    |         <tr>

    #data
    <!doctype html><table><td><plaintext></plaintext>
    #errors
    (1,26): unexpected-cell-in-table-body
    (1,49): expected-closing-tag-but-got-eof
    #document
    | <!DOCTYPE html>
    | <html>
    |   <head>
    |   <body>
    |     <table>
    |       <tbody>
    |         <tr>
    |           <td>
    |             <plaintext>
    |               "</plaintext>"

    #data
    <!doctype html><table><caption><plaintext></plaintext>
    #errors
    (1,54): expected-closing-tag-but-got-eof
    #document
    | <!DOCTYPE html>
    | <html>
    |   <head>
    |   <body>
    |     <table>
    |       <caption>
    |         <plaintext>
    |           "</plaintext>"

    #data
    <!doctype html><table><colgroup><plaintext></plaintext>
    #errors
    43: Start tag “plaintext” seen in “table”.
    55: Misplaced non-space characters inside a table.
    55: End of file seen and there were open elements.
    43: Unclosed element “plaintext”.
    22: Unclosed element “table”.
    #document
    | <!DOCTYPE html>
    | <html>
    |   <head>
    |   <body>
    |     <plaintext>
    |       "</plaintext>"
    |     <table>
    |       <colgroup>

    #data
    <!doctype html><select><plaintext></plaintext>X
    #errors
    34: Stray start tag “plaintext”.
    46: Stray end tag “plaintext”.
    47: End of file seen and there were open elements.
    23: Unclosed element “select”.
    #document
    | <!DOCTYPE html>
    | <html>
    |   <head>
    |   <body>
    |     <select>
    |       "X"

    #data
    <!doctype html><table><select><plaintext>a<caption>b
    #errors
    30: Start tag “select” seen