old_contents: /* global XMLHttpRequest, expect */
  
  function loadBinaryResource (url) {
    const req = new XMLHttpRequest()
    req.open('GET', url, false)
     // XHR binary charset opt by Marcus Granado 2006 [http://mgran.blogspot.com]
    req.overrideMimeType('text\/plain; charset=x-user-defined');
    req.send(null)
    if (req.status !== 200) {
      throw new Error('Unable to load file')
    }
        var responseText = req.responseText;
      var responseTextLen = req.responseText.length;
      var binary = ''
      for (var j = 0; j < responseTextLen; j+=1) {
          binary += String.fromCharCode(responseText.charCodeAt(j) & 0xff)
      }   
      var base64data = window.btoa(binary);
    return window.atob(base64data);
  }
  
  function sendReference (filename, data) {
    const req = new XMLHttpRequest()
    req.open('POST', `http://localhost:9090/${filename}`, true)
    req.onload = e => {
      console.log(e)
    }
    req.send(data)
  }
  
  const resetCreationDate = input =>
    input.replace(
      /\/CreationDate \(D:(.*?)\)/,
      '/CreationDate (D:19871210000000+00\'00\'\)'
    )
  
  /**
   * Find a better way to set this
   * @type {Boolean}
   */
  window.comparePdf = (actual, expectedFile, suite) => {
    let pdf
    try {
      pdf = loadBinaryResource(`/base/tests/${suite}/reference/${expectedFile}`)
    } catch (error) {
      sendReference(`/tests/${suite}/reference/${expectedFile}`, resetCreationDate(actual))
      pdf = actual
    }
    const expected = resetCreationDate(pdf).trim()
    actual = resetCreationDate(actual.trim())
  
    expect(actual).toEqual(expected)
  }
  
new_contents: /* global XMLHttpRequest, expect */
  
  function loadBinaryResource (url) {
    const req = new XMLHttpRequest()
    req.open('GET', url, false)
     // XHR binary charset opt by Marcus Granado 2006 [http://mgran.blogspot.com]
    req.overrideMimeType('text\/plain; charset=x-user-defined');
    req.send(null)
    if (req.status !== 200) {
      throw new Error('Unable to load file')
    }
        var responseText = req.responseText;
      var responseTextLen = req.responseText.length;
      var binary = ''
      for (var j = 0; j < responseTextLen; j+=1) {
          binary += String.fromCharCode(responseText.charCodeAt(j) & 0xff)
      }   
    return binary;
  }
  
  function sendReference (filename, data) {
    const req = new XMLHttpRequest()
    req.open('POST', `http://localhost:9090/${filename}`, true)
    req.onload = e => {
      console.log(e)
    }
    req.send(data)
  }
  
  const resetCreationDate = input =>
    input.replace(
      /\/CreationDate \(D:(.*?)\)/,
      '/CreationDate (D:19871210000000+00\'00\'\)'
    )
  
  /**
   * Find a better way to set this
   * @type {Boolean}
   */
  window.comparePdf = (actual, expectedFile, suite) => {
    let pdf
    try {
      pdf = loadBinaryResource(`/base/tests/${suite}/reference/${expectedFile}`)
    } catch (error) {
      sendReference(`/tests/${suite}/reference/${expectedFile}`, resetCreationDate(actual))
      pdf = actual
    }
    const expected = resetCreationDate(pdf).trim()
    actual = resetCreationDate(actual.trim())
  
    expect(actual).toEqual(expected)
  }
  
subject: Update compare.js