[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Runtime](./puppeteer.protocol.runtime.md) > [RunScriptRequest](./puppeteer.protocol.runtime.runscriptrequest.md) > [executionContextId](./puppeteer.protocol.runtime.runscriptrequest.executioncontextid.md) ## Protocol.Runtime.RunScriptRequest.executionContextId property Specifies in which execution context to perform script run. If the parameter is omitted the evaluation will be performed in the context of the inspected page. Signature: ```typescript executionContextId?: ExecutionContextId; ```