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


Not part of any specification.

Browser compatibility

BCD tables only load in the browser

See also