window.BeforeUnloadEvent | Huge DOM compatibility table

window . BeforeUnloadEvent

Browser	Version	Own?	Type	As String
AppleWebit	537.36.0	?	?	?
bingbot	2.0.0	?	?	?
BingPreview	1.0.0	?	?	?
BitSightBot	1.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	41.0.2226	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	56.0.2924	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	59.0.3071	?	?	?
Chrome	68.0.3440	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	69.0.3497	?	?	?
Chrome	70.0.3538	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	73.0.3683	?	?	?
Chrome	76.0.3809	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	77.0.3865	?	?	?
Chrome	79.0.3945	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	83.0.4103	?	?	?
Chrome	86.0.4240	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	89.0.4389	?	?	?
Chrome	90.0.4430	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	92.0.4506	?	?	?
Chrome	92.0.4515	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	94.0.4590	?	?	?
Chrome	94.0.4606	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	95.0.4624	?	?	?
Chrome	95.0.4630	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	96.0.4648	?	?	?
Chrome	96.0.4652	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	96.0.4655	?	?	?
Chrome	96.0.4662	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	97.0.4675	?	?	?
Chrome	97.0.4692	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	98.0.4723	?	?	?
Chrome	98.0.4744	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	100.0.0	?	?	?
Chrome	100.0.4867	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	101.0.4929	?	?	?
Chrome	101.0.4951	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	102.0.5005	?	?	?
Chrome	103.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	104.0.5109	?	?	?
Chrome	105.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	105.0.5195	?	?	?
Chrome	106.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	106.0.5249	?	?	?
Chrome	107.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	108.0.5359	?	?	?
Chrome	109.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	110.0.5481	?	?	?
Chrome	111.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	113.0.5672	?	?	?
Chrome	114.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	114.0.5735	?	?	?
Chrome	115.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	115.0.5790	?	?	?
Chrome	116.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	116.0.5845	?	?	?
Chrome	117.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	118.0.5993	?	?	?
Chrome	119.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	119.0.6045	?	?	?
Chrome	120.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	121.0.6167	?	?	?
Chrome	122.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	122.0.6261	?	?	?
Chrome	123.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Chrome	123.0.6312	?	?	?
ClaudeBot	1.0.0	?	?	?
CriOS	79.0.3945	own	function	function BeforeUnloadEvent() { [native code] }
CriOS	107.0.0	own	function	function BeforeUnloadEvent() { [native code] }
CriOS	111.0.5563	?	?	?
CriOS	112.0.5615	own	function	function BeforeUnloadEvent() { [native code] }
Edge	84.0.522	?	?	?
Edge	92.0.902	own	function	function BeforeUnloadEvent() { [native code] }
Edge	93.0.961	?	?	?
Edge	94.0.992	own	function	function BeforeUnloadEvent() { [native code] }
Edge	98.0.1108	?	?	?
Edge	99.0.1150	own	function	function BeforeUnloadEvent() { [native code] }
Edge	104.0.1279	?	?	?
Edge	104.0.1293	own	function	function BeforeUnloadEvent() { [native code] }
Edge	105.0.1343	?	?	?
Edge	106.0.1370	own	function	function BeforeUnloadEvent() { [native code] }
Edge	107.0.1418	own	function	function BeforeUnloadEvent() { [native code] }
Edge	108.0.1462	own	function	function BeforeUnloadEvent() { [native code] }
Edge	113.0.1774	?	?	?
Edge	114.0.1823	own	function	function BeforeUnloadEvent() { [native code] }
Edge	115.0.0	?	?	?
Edge	115.0.1901	own	function	function BeforeUnloadEvent() { [native code] }
Edge	117.0.2045	?	?	?
Edge	118.0.2088	own	function	function BeforeUnloadEvent() { [native code] }
Edge	120.0.0	?	?	?
Edge	121.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Edge	123.0.0	?	?	?
Edge	124.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Firefox	52.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Firefox	89.0.0	?	?	?
Firefox	90.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Firefox	92.0.0	?	?	?
Firefox	93.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Firefox	94.0.2	?	?	?
Firefox	95.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Firefox	108.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Firefox	109.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Firefox	112.0.0	?	?	?
Firefox	113.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Firefox	114.0.0	?	?	?
Firefox	115.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Firefox	117.0.0	?	?	?
Firefox	118.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Firefox	119.0.0	?	?	?
Firefox	120.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Firefox	125.0.0	?	?	?
Firefox	126.0.0	own	function	function BeforeUnloadEvent() { [native code] }
FxiOS	36.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Googlebot	2.1.0	?	?	?
GuzzleHttp	7.0.0	?	?	?
IE	11.0.0	own	object	[object BeforeUnloadEvent]
Mobile	15.0.0	own	function	function BeforeUnloadEvent() { [native code] }
render	2.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Safari	4.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Safari	8.0.0	?	?	?
Safari	11.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Safari	13.0.3	?	?	?
Safari	13.1.0	own	function	function BeforeUnloadEvent() { [native code] }
Safari	15.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Safari	15.1.0	own	function	function BeforeUnloadEvent() { [native code] }
Safari	15.6.3	?	?	?
Safari	16.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Safari	16.3.0	?	?	?
Safari	16.4.0	own	function	function BeforeUnloadEvent() { [native code] }
Safari	537.36.0	own	function	function BeforeUnloadEvent() { [native code] }
SamsungBrowser	17.0.0	own	function	function BeforeUnloadEvent() { [native code] }
SamsungBrowser	18.0.0	?	?	?
SamsungBrowser	19.0.0	own	function	function BeforeUnloadEvent() { [native code] }
SamsungBrowser	20.0.0	?	?	?
YandexBot	3.0.0	?	?	?
YandexRenderResourcesBot	1.0.0	own	function	function BeforeUnloadEvent() { [native code] }
Zeno	78.0.0	?	?	?

Properties	AppleWebit	bingbot	BingPreview	BitSightBot	Chrome	ClaudeBot	CriOS	Edge	Firefox	FxiOS	Googlebot	GuzzleHttp	IE	Mobile	render	Safari	SamsungBrowser	YandexBot	YandexRenderResourcesBot	Zeno
ALT_MASK	?	?	?	?	41.0.2226	?	?	107.0.1418	52.0.0	?	?	?	?	?	?	?	?	?	?	?
AT_TARGET	?	?	?	1.0.0	41.0.0	?	79.0.0	92.0.0	52.0.0	36.0.0	?	?	?	15.0.0	2.0.0	4.0.0	17.0.0	?	1.0.0	?
BLUR	?	?	?	?	56.0.2924	?	?	?	?	?	?	?	?	?	?	?	?	?	?	?
BUBBLING_PHASE	?	?	?	1.0.0	41.0.0	?	79.0.0	92.0.0	52.0.0	36.0.0	?	?	?	15.0.0	2.0.0	4.0.0	17.0.0	?	1.0.0	?
CAPTURING_PHASE	?	?	?	1.0.0	41.0.0	?	79.0.0	92.0.0	52.0.0	36.0.0	?	?	?	15.0.0	2.0.0	4.0.0	17.0.0	?	1.0.0	?
CHANGE	?	?	?	?	56.0.2924	?	?	?	?	?	?	?	?	?	?	?	?	?	?	?
CLICK	?	?	?	?	56.0.2924	?	?	?	?	?	?	?	?	?	?	?	?	?	?	?
CONTROL_MASK	?	?	?	?	41.0.2226	?	?	107.0.1418	52.0.0	?	?	?	?	?	?	?	?	?	?	?
DBLCLICK	?	?	?	?	56.0.2924	?	?	?	?	?	?	?	?	?	?	?	?	?	?	?
DRAGDROP	?	?	?	?	56.0.2924	?	?	?	?	?	?	?	?	?	?	?	?	?	?	?
FOCUS	?	?	?	?	56.0.2924	?	?	?	?	?	?	?	?	?	?	?	?	?	?	?
KEYDOWN	?	?	?	?	56.0.2924	?	?	?	?	?	?	?	?	?	?	?	?	?	?	?
KEYPRESS	?	?	?	?	56.0.2924	?	?	?	?	?	?	?	?	?	?	?	?	?	?	?
KEYUP	?	?	?	?	56.0.2924	?	?	?	?	?	?	?	?	?	?	?	?	?	?	?
length	?	?	?	1.0.0	41.0.0	?	79.0.0	92.0.0	52.0.0	36.0.0	?	?	?	15.0.0	2.0.0	4.0.0	17.0.0	?	1.0.0	?
META_MASK	?	?	?	?	41.0.2226	?	?	107.0.1418	52.0.0	?	?	?	?	?	?	?	?	?	?	?
MOUSEDOWN	?	?	?	?	56.0.2924	?	?	?	?	?	?	?	?	?	?	?	?	?	?	?
MOUSEDRAG	?	?	?	?	56.0.2924	?	?	?	?	?	?	?	?	?	?	?	?	?	?	?
MOUSEMOVE	?	?	?	?	56.0.2924	?	?	?	?	?	?	?	?	?	?	?	?	?	?	?
MOUSEOUT	?	?	?	?	56.0.2924	?	?	?	?	?	?	?	?	?	?	?	?	?	?	?
MOUSEOVER	?	?	?	?	56.0.2924	?	?	?	?	?	?	?	?	?	?	?	?	?	?	?
MOUSEUP	?	?	?	?	56.0.2924	?	?	?	?	?	?	?	?	?	?	?	?	?	?	?
NONE	?	?	?	1.0.0	41.0.0	?	79.0.0	92.0.0	52.0.0	36.0.0	?	?	?	15.0.0	2.0.0	4.0.0	17.0.0	?	1.0.0	?
prototype	?	?	?	1.0.0	41.0.0	?	79.0.0	92.0.0	52.0.0	36.0.0	?	?	11.0.0	15.0.0	2.0.0	4.0.0	17.0.0	?	1.0.0	?
SELECT	?	?	?	?	56.0.2924	?	?	?	?	?	?	?	?	?	?	?	?	?	?	?
SHIFT_MASK	?	?	?	?	41.0.2226	?	?	107.0.1418	52.0.0	?	?	?	?	?	?	?	?	?	?	?