downloading event is fired after checking for an application cache update, if the user agent has found an update and is fetching it, or is downloading the resources listed by the cache manifest for the first time.
- Default Action
||EventTarget (DOM element)||The event target (the topmost target in the DOM tree). Read Only.|
||string||The type of event. Read only.|
||boolean||Does the event normally bubble? Read only.|
||boolean||Is it possible to cancel the event? Read only.|