anchor.diff:  $(document).on('rails_admin.dom_ready', function() {
     activeSortable();
   
  -  $('.cb-form').on('submit', function(e){
  +  $('.cb-form').on('submit', function(e) {
  +    // remove all attributes of content editable
  +    $('.cb-text').replaceWith(function() {
  +      return $('<' + this.nodeName + '>')
  +                .addClass($(this).attr('class'))
  +                .append($(this).contents());
  +    });
  +
  +    $('.cb-editable').replaceWith(function() {
  +      return $('<' + this.nodeName + '>')
  +                .addClass($(this).attr('class'))
  +                .append($(this).contents());
  +    });
  +
  +    // get all content of container
       var content = $('.cb-container').html();
  +
  +    // set content in input file
       $('#content').attr('value', content);
     });
   
  
positive.code: 
  // active medium editor plugin
  function activeMediumEditor() {
    var editor = new MediumEditor('.cb-text', {
      placeholder: {
        text: '',
        hideOnClick: true
  
negative.code:     }
    });
  
    var editable = new MediumEditor('.cb-editable', {
      placeholder: false,
      toolbar: false,
      anchor: false,
  