Adding Google Map via iframe with CKeditor in an article
Please see dev.ckeditor.com/ticket/11688 for more details.


  If you are using latest CKEditor for Drupal module then please go to Modules->CKEditor->Configure and edit your profiles. Each of them has ADVANCED CONTENT FILTER setting which can be disabled/enabled or extended.


NOTE: durring checking it has turned out that relase version for drupal OS module hasn't been updated thus you can't see this setting. For now please use development release which has this feature and is fully stable.