HTML React

Iframe Embedding Demo

Learn how to embed React components as iframes in any website

What is Iframe Embedding?

Iframe embedding allows you to integrate external web applications or components into your existing website. This technique is commonly used for embedding widgets, forms, maps, and interactive content without affecting the parent page's styling or functionality.

In this demo, we'll show you how to embed a React-based poll widget into any website using iframes, along with techniques for dynamic height adjustment and cross-origin communication.

Live Demo: Embedded Poll Widget

Below is a React poll widget embedded as an iframe. Notice how it seamlessly integrates with this page's design while maintaining its own functionality and styling.

Key Benefits of Iframe Embedding

Isolation

Iframes provide complete isolation between the embedded content and the parent page, preventing CSS conflicts and JavaScript interference.

Security

Embedded content runs in its own context, providing an additional layer of security and preventing cross-site scripting attacks.

Maintainability

Embedded components can be updated independently without affecting the parent website or requiring redeployment.

Cross-Origin Support

Iframes can load content from different domains, enabling integration of third-party services and components.

Implementation Guide

To embed a React component as an iframe, you need to:

  1. Create a dedicated route in your React app for the component you want to embed
  2. Add iframe detection to handle embedded vs standalone rendering
  3. Implement height adjustment to ensure the iframe fits the content
  4. Set up cross-origin communication for dynamic configuration and event handling

The embedded widget above demonstrates all these techniques, including real-time height adjustment and message passing between the iframe and parent page.

Technical Details

This demo showcases several advanced iframe embedding techniques:

  • Dynamic Height Adjustment: The iframe automatically resizes based on content changes
  • PostMessage Communication: Secure cross-origin messaging for configuration and events
  • Responsive Design: The embedded component adapts to different container sizes
  • State Management: Local storage persistence within the iframe context

These techniques ensure that embedded components work seamlessly across different websites and use cases.