当我在tinmyce.init（）中编写setup函数时，tinymce消失，只有纯文本区域可见

Question

请参阅以下代码：

  tinymce.init({

      selector:"#editArea", //id of my textarea to be replaced by tinymce

      plugins : [
                  "advlist autolink link image lists charmap print preview textcolor colorpicker image imagetools contextmenu" ,
                  "autosave searchreplace wordcount insertdatetime code media nonbreaking spellchecker save table",
                  "directionality emoticons template paste visualblocks visualchars hr anchor pagebreak autoresize"

                  ],

       fontsize_formats: "8pt 9pt 10pt 11pt 12pt 26pt 36pt",            

      forced_root_block : '',
      schema: "html5",


      autosave_ask_before_unload:true,

      image_title: true,

      paste_data_images:true,


      toolbar: ["save undo redo styleselect  ", 
                    "alignleft aligncenter alignright emoticons",
                 " bullist  numlist outdent bold italic ",
                 " indent forecolor  backcolor code image",
                  "fontselect fontsizeselect"],


      contextmenu: "link image inserttable | cell row column deletetable",
      automatic_uploads: true,

      setup:function(ed){
            ed.onLoadContent.add(function(ed,o){
                o.content=o.content.replace(/Â/g,'');
            });
      }

});

为什么tinymce编辑器在写入设置功能时会消失（如果我在上面的代码中注释掉设置功能部分，则可见）？