[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Fetch](./puppeteer.protocol.fetch.md) > [AuthRequiredEvent](./puppeteer.protocol.fetch.authrequiredevent.md) > [authChallenge](./puppeteer.protocol.fetch.authrequiredevent.authchallenge.md) ## Protocol.Fetch.AuthRequiredEvent.authChallenge property Details of the Authorization Challenge encountered. If this is set, client should respond with continueRequest that contains AuthChallengeResponse. Signature: ```typescript authChallenge: AuthChallenge; ```