[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Page](./puppeteer.protocol.page.md) > [FrameAttachedEvent](./puppeteer.protocol.page.frameattachedevent.md) > [stack](./puppeteer.protocol.page.frameattachedevent.stack.md) ## Protocol.Page.FrameAttachedEvent.stack property JavaScript stack trace of when frame was attached, only set if frame initiated from script. Signature: ```typescript stack?: Runtime.StackTrace; ```