On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 1 on 2008-12-11 Note: Before Chrome 95, script-closeability depended on having an opener, not on being created by web content.
In Chrome Android version 18 on 2012-06-27 Note: Before Chrome Android 95, script-closeability depended on having an opener, not on being created by web content.
In Deno version 1.0 on 2020-05-13 Note: Exits the current Deno process.
In Edge version 12 on 2015-07-29
In Firefox version 1 on 2004-11-09 Note: Before Firefox 128, script-closeability depended on having an opener, not on being created by web content.
In Firefox for Android version 4 on 2011-03-29 Note: Before Firefox for Android 128, script-closeability depended on having an opener, not on being created by web content.
In Internet Explorer version 4 on 1997-09-30
In Quest Browser version 5.0 on undefined Note: Before Quest Browser 18.0, script-closeability depended on having an opener, not on being created by web content.
In Opera version 3 on 1997-12-01
In Opera Android version 10.1 on 2010-11-09
In Safari version 1 on 2003-06-23
In Safari on iOS version 1 on 2007-06-29
In Samsung Internet version 1.0 on 2013-04-27 Note: Before Samsung Internet 17.0, script-closeability depended on having an opener, not on being created by web content.
In WebView Android version 4.4 on 2013-12-09 Note: Before WebView Android 95, script-closeability depended on having an opener, not on being created by web content.
In WebView on iOS version 1 on 2007-06-29