close events are generated by several APIs:
- HTML DOM
- Sent to a target
<dialog>to let it know that it has been closed.
- IndexedDB API
- Sent to the
IDBDatabaseobject representing a database connection when the database is unexpectedly closed. This happens after all transactions have been aborted. You can use
IDBDatabase.oncloseto establish the event handler.
- WebRTC API
- Sent to an
RTCDataChannelto let it know that a data connection has been terminated. You can use the
RTCDataConnection.oncloseproperty to establish an event handler for this, in addition to using
- WebSocket API
- Sent when a WebSocket connection closes. More information needed here.
- Web Workers API
- Some browsers used a close event to indicate that a given
Workerhad shut down; this was at one point part of the specification, but has been removed from the spec, and browsers are in the process of removing support for this event in the Web Workers API.
- HTML Living Standard
Indexed Database API
WebRTC 1.0: Real-time Communication Between Browsers
- Default Action
Event, this event implements only the properties of this interface.
Event, this event implements only the methods of this interface.
|WebRTC 1.0: Real-time Communication Between Browsers
|Working Draft||Definition for the WebRTC API|
|HTML Living Standard
|Living Standard||Definition regarding the
|Indexed Database API 2.0
|Editor's Draft||Definition of the connection closing algorithm and its use of the
|Feature||Chrome||Edge||Firefox (Gecko)||Internet Explorer||Opera||Safari|
|Support for the WebRTC event||(Yes)||未实现||(Yes)||未实现||(Yes)||?|
|Support for the WebSockets event||(Yes)||(Yes)||(Yes)||(Yes)||(Yes)||(Yes)|
|Support for the IndexedDB event||?||未实现||50 (50)||?||?||?|
|Support for the
|Support for the Workers event||4||未实现||3.5 (1.9.1) through 50 (50)||?||11.5||4|
|Feature||Android||Chrome for Android||Edge||Firefox Mobile (Gecko)||IE Mobile||Opera Mobile||Safari Mobile|
|Support for the WebRTC event||?||?||未实现||?||未实现||?||?|
|Support for the WebSockets event||(Yes)||(Yes)||(Yes)||(Yes)||(Yes)||(Yes)||(Yes)|
|Support for the IndexedDB event||?||?||未实现||50.0 (50)||?||?||?|
|Support for the
|Support for the Workers event||?||40||未实现||1.0 (1.9.1) through 50.0 (50)||?||(Yes)||5.1|