[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Runtime](./puppeteer.protocol.runtime.md) > [ExecutionContextDescription](./puppeteer.protocol.runtime.executioncontextdescription.md) > [auxData](./puppeteer.protocol.runtime.executioncontextdescription.auxdata.md) ## Protocol.Runtime.ExecutionContextDescription.auxData property Embedder-specific auxiliary data. Signature: ```typescript auxData?: any; ```