Just a note for those who see the following error in your logs:
The process is not in background processing mode : ERROR WITH URL : 403
This is usually kicked out during login or logout and is usually close in proximity with log entries that start with the following:
Support has notified me that this is due to a change in the way that frames are used in 7.2, and is a regular occurrence. Is internally marked as a development note to fix in code and/or logging, but otherwise causes no harm. Hope this helps some of you if your wondering what this is about.