old_contents: import {Locale} from 'Framework/Locale'
  import {Flash} from 'Framework/Flash'
  const locale = new Locale()
  
  export class Ajax {
    initAjax () {
      /* set some defaults for AJAX-request */
      $.ajaxSetup(
        {
          cache: false,
          type: 'POST',
          dataType: 'json',
          timeout: 5000
        }
      )
  
      /* 403 means we aren't authenticated anymore, so reload the page */
      $(document).ajaxError((event, XMLHttpRequest, ajaxOptions) => {
        if (XMLHttpRequest.status === 403) {
          window.location.reload()
        }
  
        if (ajaxOptions !== null) {
          let textStatus = locale.err('GeneralError')
  
          if (XMLHttpRequest.responseText !== null) {
            let json = $.parseJSON(XMLHttpRequest.responseText)
  
            if (json.message !== null) {
              textStatus = json.message
            } else {
              textStatus = XMLHttpRequest.responseText
            }
          }
  
          new Flash().add(textStatus, 'danger')
        }
  
        return false
      })
  
      /* show spinners */
      $(document).ajaxStart(() => {
        $.event.trigger('ajax_start')
      })
  
      $(document).ajaxStop(() => {
        $.event.trigger('ajax_stop')
      })
    }
  }
  
new_contents: import {Locale} from 'Framework/Locale'
  import {Flash} from 'Framework/Flash'
  const locale = new Locale()
  
  export class Ajax {
    initAjax () {
      /* set some defaults for AJAX-request */
      $.ajaxSetup(
        {
          cache: false,
          type: 'POST',
          dataType: 'json',
          timeout: 5000
        }
      )
  
      /* 403 means we aren't authenticated anymore, so reload the page */
      $(document).ajaxError((event, XMLHttpRequest, ajaxOptions) => {
        if (XMLHttpRequest.status === 403) {
          window.location.reload()
        }
  
        if (ajaxOptions !== null) {
          let textStatus = locale.err('GeneralError')
  
          if (XMLHttpRequest.responseText !== null) {
            let json = $.parseJSON(XMLHttpRequest.responseText)
  
            if (json.message !== null) {
              textStatus = json.message
            } else {
              textStatus = XMLHttpRequest.responseText
            }
          }
  
          new Flash().add(textStatus, 'danger')
        }
  
        return false
      })
      
      $(document).ajaxStart(() => {
        $.event.trigger('ajax_start')
      })
  
      $(document).ajaxStop(() => {
        $.event.trigger('ajax_stop')
      })
    }
  }
  
subject: Remove false comment about ajax_start and ajax_stop