[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [BackgroundService](./puppeteer.protocol.backgroundservice.md) > [BackgroundServiceEvent](./puppeteer.protocol.backgroundservice.backgroundserviceevent.md) > [origin](./puppeteer.protocol.backgroundservice.backgroundserviceevent.origin.md) ## Protocol.BackgroundService.BackgroundServiceEvent.origin property The origin this event belongs to. Signature: ```typescript origin: string; ```