[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [WebAudio](./puppeteer.protocol.webaudio.md) > [ContextWillBeDestroyedEvent](./puppeteer.protocol.webaudio.contextwillbedestroyedevent.md) ## Protocol.WebAudio.ContextWillBeDestroyedEvent interface Notifies that an existing BaseAudioContext will be destroyed. Signature: ```typescript export interface ContextWillBeDestroyedEvent ``` ## Properties | Property | Type | Description | | --- | --- | --- | | [contextId](./puppeteer.protocol.webaudio.contextwillbedestroyedevent.contextid.md) | [GraphObjectId](./puppeteer.protocol.webaudio.graphobjectid.md) | |