[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [ServiceWorker](./puppeteer.protocol.serviceworker.md) > [ServiceWorkerVersion](./puppeteer.protocol.serviceworker.serviceworkerversion.md) > [targetId](./puppeteer.protocol.serviceworker.serviceworkerversion.targetid.md) ## Protocol.ServiceWorker.ServiceWorkerVersion.targetId property Signature: ```typescript targetId?: Target.TargetID; ```