old_contents: #!/usr/bin/env node
  
  /*!
   * Script to run vnu-jar if Java is available.
   * Copyright 2017-2019 The Bootstrap Authors
   * Copyright 2017-2019 Twitter, Inc.
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   */
  
  'use strict'
  
  const childProcess = require('child_process')
  const vnu = require('vnu-jar')
  
  childProcess.exec('java -version', (error, stdout, stderr) => {
    if (error) {
      console.error('Skipping vnu-jar test; Java is missing.')
      return
    }
  
    const is32bitJava = !stderr.match(/64-Bit/)
  
    // vnu-jar accepts multiple ignores joined with a `|`.
    // Also note that the ignores are regular expressions.
    const ignores = [
      // "autocomplete" is included in <button> and checkboxes and radio <input>s due to
      // Firefox's non-standard autocomplete behavior - see https://bugzilla.mozilla.org/show_bug.cgi?id=654072
      'Attribute “autocomplete” is only allowed when the input type is.*',
      'Attribute “autocomplete” not allowed on element “button” at this point.',
      // Markup used in Components → Forms → Layout → Form grid → Horizontal form is currently invalid,
      // but used this way due to lack of support for flexbox layout on <fieldset> element in most browsers
      'Element “legend” not allowed as child of element “div” in this context.*',
      // Content → Reboot uses various date/time inputs as a visual example.
      // Documentation does not rely on them being usable.
      'The “date” input type is not supported in all browsers.*',
      'The “time” input type is not supported in all browsers.*',
      // IE11 doesn't recognise <main> / give the element an implicit "main" landmark.
      // Explicit role="main" is redundant for other modern browsers, but still valid.
      'The “main” role is unnecessary for element “main”.',
      // Ignore the wrong lanuage code warnings for now; they happen randomly.
      'This document appears to be written in.*'
    ].join('|')
  
    const args = [
      '-jar',
      vnu,
      '--asciiquotes',
      '--skip-non-html',
      '--Werror',
      `--filterpattern "${ignores}"`,
      '_gh_pages/',
      'js/tests/'
    ]
  
    // For the 32-bit Java we need to pass `-Xss512k`
    if (is32bitJava) {
      args.splice(0, 0, '-Xss512k')
    }
  
    return childProcess.spawn('java', args, {
      shell: true,
      stdio: 'inherit'
    })
      .on('exit', process.exit)
  })
  
new_contents: #!/usr/bin/env node
  
  /*!
   * Script to run vnu-jar if Java is available.
   * Copyright 2017-2019 The Bootstrap Authors
   * Copyright 2017-2019 Twitter, Inc.
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   */
  
  'use strict'
  
  const childProcess = require('child_process')
  const vnu = require('vnu-jar')
  
  childProcess.exec('java -version', (error, stdout, stderr) => {
    if (error) {
      console.error('Skipping vnu-jar test; Java is missing.')
      return
    }
  
    const is32bitJava = !stderr.match(/64-Bit/)
  
    // vnu-jar accepts multiple ignores joined with a `|`.
    // Also note that the ignores are regular expressions.
    const ignores = [
      // "autocomplete" is included in <button> and checkboxes and radio <input>s due to
      // Firefox's non-standard autocomplete behavior - see https://bugzilla.mozilla.org/show_bug.cgi?id=654072
      'Attribute “autocomplete” is only allowed when the input type is.*',
      'Attribute “autocomplete” not allowed on element “button” at this point.',
      // Markup used in Components → Forms → Layout → Form grid → Horizontal form is currently invalid,
      // but used this way due to lack of support for flexbox layout on <fieldset> element in most browsers
      'Element “legend” not allowed as child of element “div” in this context.*',
      // Content → Reboot uses various date/time inputs as a visual example.
      // Documentation does not rely on them being usable.
      'The “date” input type is not supported in all browsers.*',
      'The “time” input type is not supported in all browsers.*',
      // IE11 doesn't recognise <main> / give the element an implicit "main" landmark.
      // Explicit role="main" is redundant for other modern browsers, but still valid.
      'The “main” role is unnecessary for element “main”.'
    ].join('|')
  
    const args = [
      '-jar',
      vnu,
      '--asciiquotes',
      '--skip-non-html',
      // Ignore the language code warnings
      '--no-langdetect',
      '--Werror',
      `--filterpattern "${ignores}"`,
      '_gh_pages/',
      'js/tests/'
    ]
  
    // For the 32-bit Java we need to pass `-Xss512k`
    if (is32bitJava) {
      args.splice(0, 0, '-Xss512k')
    }
  
    return childProcess.spawn('java', args, {
      shell: true,
      stdio: 'inherit'
    })
      .on('exit', process.exit)
  })
  
subject: Update ignores. (#28817)