[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Page](./puppeteer.protocol.page.md) > [CreateIsolatedWorldResponse](./puppeteer.protocol.page.createisolatedworldresponse.md) ## Protocol.Page.CreateIsolatedWorldResponse interface Signature: ```typescript export interface CreateIsolatedWorldResponse ``` ## Properties | Property | Type | Description | | --- | --- | --- | | [executionContextId](./puppeteer.protocol.page.createisolatedworldresponse.executioncontextid.md) | [Runtime.ExecutionContextId](./puppeteer.protocol.runtime.executioncontextid.md) | Execution context of the isolated world. |