1e133943_HTML_5__Preconditions
[Event name] error [Interface] ProgressEvent [PROGRESS] [Dispatched when...] An error occurs while fetching the media data. [Preconditions] 
error is an object with the code MEDIA_ERR_NETWORK or higher. networkState equals either NETWORK_EMPTY or NETWORK_LOADED, depending on when the download was aborted.
HTML 5
Preconditions