[Home](./index.md) > [puppeteer](./puppeteer.md) > [Connection](./puppeteer.connection.md) > [\_onMessage](./puppeteer.connection._onmessage.md) ## Connection.\_onMessage() method Signature: ```typescript _onMessage(message: string): Promise; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | message | string | | Returns: Promise<void>