d549031f_HTML_5__Dispatched_when___
[Event name] emptied [Interface] Event [Preconditions] networkState is EMPTY; all the DOM attributes are in their initial states. [Dispatched when...] 
A media element whose networkState was previously not in the EMPTY state has just switched to that state (either because of a fatal error during load that's about to be reported, or because the load() method was reinvoked, in which case it is fired synchronously during the load() method call).
HTML 5
Dispatched when...