Element: beforescriptexecute event
Non-standard: This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
Warning: This event was a proposal in an early version of the specification. Do not rely on it.
The beforescriptexecute event is fired when a script is about to be executed. Cancelling the event prevents the script from executing.
It is a proprietary event specific to Gecko (Firefox).
| Bubbles | Yes |
|---|---|
| Cancelable | Yes |
| Interface | Event |
| Event handler property | None |
Specifications
Not part of any specification.
Browser compatibility
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
beforescriptexecute_event |
No |
No |
2 |
No |
No |
No |
No |
No |
4 |
No |
No |
No |
See also
-
afterscriptexecuteevent
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https://developer.mozilla.org/en-US/docs/Web/API/Element/beforescriptexecute_event