An event handler for close events sent to the window. (Not available with Firefox 2 or Safari)
window.onclose = funcRef;
funcRef is a reference to a function.window.onclose = resetThatServerThing;
| Specification | Status | Comment |
|---|---|---|
| HTML Living Standard The definition of 'onclose' in that specification. | Living Standard |
| Desktop | ||||||
|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
| Basic support | Yes | ? | Yes | ? | ? | No |
| Mobile | |||||||
|---|---|---|---|---|---|---|---|
| Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
| Basic support | Yes | Yes | ? | Yes | ? | No | ? |
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/GlobalEventHandlers/onclose