Add <source> to the list of elements to protect
|Reported by:||alfonsoml||Owned by:||alfonsoml|
|Component:||Core : Parser||Version:||3.0|
Using the HTML5 video plugin, http://alfonsoml.blogspot.com.es/2011/01/html5-video-plugin-for-ckeditor.html add an element but put fake files just to notice this more easily.
Switch to source and back to design, in Firebug it's visible that it has tried to load the src files during the processing because <source> isn't in the list of elements whose attributes must be protected.
As this is a variable inside the function it doesn't seem possible to fix it from outside code.