[CKEditor 4] Chrome 27 : "Cannot call method 'getComputedStyle' of undefined"

Hi,

I have a problem loading the page on Chrome 27.
Randomly, CKEditor generates a javascript error "Cannot call method 'getComputedStyle' of undefined" and it is grayed out.

My code below:

for(name in CKEDITOR.instances)
       CKEDITOR.instances[name].destroy()
   CKEDITOR.disableAutoInline = true;
   $('textarea.input_cke').each(function(){
       var classList = $(this).attr('class').split(/\s+/), tbCKE='Module', heightCKE=350, idCKE;
       $.each( classList, function(index, item){
           if (item.indexOf('ckeTB_', 0)>-1)
              tbCKE = item.substr(6, index.length);
           if (item.indexOf('ckeHeight', 0)>-1)
              heightCKE = parseInt(item.substr(9, index.length));
       });
       $(this).data('tbCKE',tbCKE);
       idCKE = $(this).attr('id');
       $(this).data('idCKE',idCKE);
       if ($(this).hasClass('input_ckeInline')){
           CKEDITOR.inline($(this).data('idCKE'), {
               toolbar :$(this).data('tbCKE'),
               on: {
                   blur: function( event ) {
                       if ($('#hid_'+idCKE).length>0)
                           $('#hid_'+idCKE).val(event.editor.getData());
                   }
               }
           });
       } else {
           if (CKEDITOR.instances[$(this).data('idCKE')])
        CKEDITOR.remove(CKEDITOR.instances[$(this).data('idCKE')]);
           CKEDITOR.replace( $(this).data('idCKE'), {
               toolbar: $(this).data('tbCKE'),
               height : heightCKE
           });
       }
   });

Maybe being in a loop?

Thank you in advance for your suggestions,