In CKEditor 4.x is there a way to get the list of allowed tags after initialization?

Question

Is there a way to get a list of all allowed tags in CKEDitor 4.x (4.4.7 to be precise) after the editor has been initialized with all plugins, and all all

Answer 1

Probably CKEDITOR.filter.allowedContent is what you're looking for. It can be accessed from the editor.filter property. Small example of how to do it: https://jsfiddle.net/Comandeer/tb6f0g8r/

CKEDITOR.replace( 'editor1', {
    on: {
        instanceReady: function( evt ) {
            // It returns the array of all rules,
            //so if you want to send it to the server,
            // you'll probably need to "JSON-ify" it.
            var allowedContent = evt.editor.filter.allowedContent;
            console.log( JSON.stringify( allowedContent, null, '\t' ) );
        }
    }
} );

Maybe that format is not as friendly as simple string, but it conveys all information you need.