extends Request › EventTarget
Available on HTML5
No methods, but inherits methods from its parents
Documentation IDBOpenDBRequest by Mozilla Contributors, licensed under CC-BY-SA 2.5.
The event handler for the blocked event. This event is triggered when the
upgradeneeded event should be triggered because of a version change but the database is still in use (i.e. not closed) somewhere, even after the
versionchange event was sent.
The event handler for the
upgradeneeded event, fired when a database of a bigger version number than the existing stored database is loaded.