nl_tokens: TinyMCE plugin tweaking Markdown behaviour .
pl_tokens: function markdown ( editor ) { function allowMarkdownAttribute ( event ) { const ed = event . <mask> ; Object . keys ( ed . schema . elements ) . forEach ( function ( key ) { ed . schema . elements [ key ] . attributes . markdown = { } ; ed . schema . elements [ key ] . attributesOrder . push ( 'markdown' ) ; } ) ; } editor . on ( 'preinit' , allowMarkdownAttribute ) ; }