[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Emulation](./puppeteer.protocol.emulation.md) > [SetUserAgentOverrideRequest](./puppeteer.protocol.emulation.setuseragentoverriderequest.md) > [userAgentMetadata](./puppeteer.protocol.emulation.setuseragentoverriderequest.useragentmetadata.md) ## Protocol.Emulation.SetUserAgentOverrideRequest.userAgentMetadata property To be sent in Sec-CH-UA-\* headers and returned in navigator.userAgentData Signature: ```typescript userAgentMetadata?: UserAgentMetadata; ```