JSFiddle - React, Tailwind, and code Playground

HTML

<textarea rows="8" id="my-editor" cols="80"></textarea>
<script type="text/javascript" src="http://ckeditor.com/apps/ckeditor/3.6.2/ckeditor.js"></script>

JavaScript

CKEDITOR.on(
    'dialogDefinition', 
    function( ev )
    {
        var dialogName = ev.data.name;
        var dialogDefinition = ev.data.definition;

        if ( dialogName == 'tableProperties' )
        {
            var tab = dialogDefinition.getContents( 'advanced' );
            //tab.remove ('advLangDir');
            tab.remove ('advStyles'); // This removal causes the bug to appear
            //tab.remove ('advCSSClasses');
        }
    }
);
window.x  = CKEDITOR.editor.replace('my-editor');