A new xwiki:ckeditor:convertHTML event is send before a request to convert some content to HTML is sent by CKEditor. Listeners can add new request parameters by add properties on the data object send with the event. The example below show how to add an example parameter with value 1.
$(document).on('xwiki:ckeditor:convertHTML', function(event, data) {
data.example = 1;
});
data.example = 1;
});
