Add a handler to be notified when the event occurs.
"webRequestEvent_var" is a variable referencing a WebRequestEvent object.
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"webRequestEvent_var" is a variable referencing a WebRequestEvent object.
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Type | Description |
boolean | Returns true if the addition of the handler was successful. |
Name | Type | Description |
handler | WebRequestEventHandler | The handler object to be called when this event is fired. |