CKeditor removes iframes in editor after update to 6.x-1.14 Similar to this issue on the CKeditor project, CKeditor removes embedded iframes after I've updated the module. Though there is a solution in the first comment for Drupal 7, I can't find a solution for this for Drupal 6.

Is there a solution to this?
In ckeditor.config.js, add config.allowedContent = true; to disable the filtering of HTML elements in the editor.

CKEDITOR.editorConfig = function(config) {
    config.allowedContent = true;
}