Best practices for React iframes

The article delves into the use of iframes in React applications, highlighting their ability to embed external content while maintaining independence from the parent component's styling and scripts, which makes them useful for creating sandboxed components. It discusses the benefits and challenges of using iframes, including potential security risks such as cross-site scripting (XSS) attacks, and emphasizes the importance of only embedding content from trusted sources. The tutorial explains how to use React portals to render content within iframes, allowing developers to isolate components while sharing the state with parent components, and provides detailed guidance on iframe attributes like `src`, `srcdoc`, `sandbox`, and `loading` for customizing content and optimizing load performance. The text also covers how to integrate Material UI styling within iframe contexts using the `@emotion/cache` package, and it explores methods for handling events and inserting JavaScript into iframes programmatically, stressing the need for secure practices to prevent malicious attacks.