Allowed attributes, allowed class sanitized by toggling source

[Josh]

Steps to reproduce

1. Allow class attribute on tables
2. Allow specific class
3. Add specified class on table element using source. Toggle source off, the class is sanitized and contains cke_show_border. Toggle source back on, class attribute is gone.

Expected result

Class is applied and available to edit in the future. Source can be toggled without clearing allowed classes.

Actual result

Allowed class is sanitized by toggling source

Other details (browser, OS, CKEditor version, installed plugins)

All OS, all browsers. CKE 4.5.4. Plugins: table, tableresize,quicktable

[Jakub Ś]

I haven't tested quicktable plugin because this is a third party plugin but I have tested other two and there are no problems.

1. First off all you should allow classes and not attributes for tables.

   var editor = CKEDITOR.replace( 'editor1', {
   extraPlugins : 'tableresize',
   extraAllowedContent : 'table(*)' //'table(someClass)'
   });
   

2. Second is that cke_show_border is assigned to body and not the table directly.