[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Page](./puppeteer.protocol.page.md) > [CrossOriginIsolatedContextType](./puppeteer.protocol.page.crossoriginisolatedcontexttype.md) ## Protocol.Page.CrossOriginIsolatedContextType type Indicates whether the frame is cross-origin isolated and why it is the case. Signature: ```typescript export type CrossOriginIsolatedContextType = ('Isolated' | 'NotIsolated' | 'NotIsolatedFeatureDisabled'); ```