[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Fetch](./puppeteer.protocol.fetch.md) > [AuthChallengeSource](./puppeteer.protocol.fetch.authchallengesource.md) ## Protocol.Fetch.AuthChallengeSource enum Signature: ```typescript export const enum AuthChallengeSource ``` ## Enumeration Members | Member | Value | Description | | --- | --- | --- | | Proxy | 'Proxy' | | | Server | 'Server' | |