[Home](./index.md) > [puppeteer](./puppeteer.md) > [FrameManager](./puppeteer.framemanager.md) > [\_onLifecycleEvent](./puppeteer.framemanager._onlifecycleevent.md) ## FrameManager.\_onLifecycleEvent() method Signature: ```typescript _onLifecycleEvent(event: Protocol.Page.lifecycleEventPayload): void; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | event | Protocol.Page.lifecycleEventPayload | | Returns: void