This blog post provides a detailed guide on how to receive data from an iframe to a parent page, specifically using the Nylas Scheduler as an example. It addresses the challenges of maintaining seamless user experiences with the growing trend of SaaS integrations in applications and explores solutions for keeping users within a single application interface. The process involves creating a React application that embeds the Nylas Scheduler in an iframe and sets up routing to handle data communication between the iframe and the parent page. The post explains the steps of setting up a redirect page to capture booking data, using React hooks to listen for messages from the iframe, and rendering the received data in the application. It emphasizes the benefits of using iframes for white-labeled functionality and provides insights into integrating tools like Nylas to enhance application capabilities.