CloseEvent

Read More at MDN DocsView Spec

Safe to Use

CloseEvent is considered safe to use.

It’s supported by 94% of global browsers.

Browsers

ChromeOct 25, 2011v15.0.0
26%╱100%
100% of Chrome users are running a supported version.
SafariJul 25, 2012v6.0.0
5%╱100%
100% of Safari users are running a supported version.
EdgeJul 28, 2015v12.0.0
5%╱100%
100% of Edge users are running a supported version.
FirefoxNov 8, 2011v8.0.0
3%╱100%
100% of Firefox users are running a supported version.

Version Breakdown

 
Agent
Support
Adoption
Chrome
Oct 25, 2011 v15.0.0
26%╱100%
100% of Chrome users are running a supported version.
Oct 25, 2011 – Latest
v15.0.0+
26%╱100%

Full Support

Chrome Android
Jun 27, 2012 v18.0.0
36%╱100%
100% of Chrome Android users are running a supported version.
Jun 27, 2012 – Latest
v18.0.0+
36%╱100%

Full Support

Deno
Sep 13, 2020 v1.4.0
Deno supports this feature.
Sep 13, 2020 – Latest
v1.4.0+

Full Support

Edge
Jul 28, 2015 v12.0.0
5%╱100%
100% of Edge users are running a supported version.
Jul 28, 2015 – Latest
v12.0.0+
5%╱100%

Full Support

Firefox
Nov 8, 2011 v8.0.0
3%╱100%
100% of Firefox users are running a supported version.
Nov 8, 2011 – Latest
v8.0.0+
3%╱100%

Full Support

Before Firefox 12, the close code CLOSE_NORMAL was used when the channel was closed due to an unexpected error or unspecified error condition.

Before Firefox 8, the WebSocket close event was sent to the listener as a simple event.

Firefox for Android
Nov 8, 2011 v8.0.0
Firefox for Android supports this feature.
Nov 8, 2011 – Latest
v8.0.0+

Full Support

Internet Explorer
Oct 26, 2012 v10.0.0
0%╱83%
There are no users of Internet Explorer running a supported version.
Oct 26, 2012 – Latest
v10.0.0+
0%╱83%

Full Support

 
Quest Browser
Unknown v5.0.0
Quest Browser supports this feature.
Unknown
v5.0.0+

Full Support

Opera
Nov 20, 2012 v12.1.0
1%╱100%
100% of Opera users are running a supported version.
Nov 20, 2012 – Latest
v12.1.0+
1%╱100%

Full Support

Opera Android
Oct 9, 2012 v12.1.0
Opera Android supports this feature.
Oct 9, 2012 – Latest
v12.1.0+

Full Support

Safari
Jul 25, 2012 v6.0.0
5%╱100%
100% of Safari users are running a supported version.
Jul 25, 2012 – Latest
v6.0.0+
5%╱100%

Full Support

Safari on iOS
Sep 10, 2012 v6.0.0
17%╱100%
There are no users of Safari on iOS running a supported version.
Sep 10, 2012 – Latest
v6.0.0+
17%╱100%

Full Support

Samsung Internet
Apr 27, 2013 v1.0.0
2%╱100%
100% of Samsung Internet users are running a supported version.
Apr 27, 2013 – Latest
v1.0.0+
2%╱100%

Full Support

WebView Android
Dec 9, 2013 v4.4.0
WebView Android supports this feature.
Dec 9, 2013 – Latest
v4.4.0+

Full Support

See Also

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