Introduction to Selenium RC

What Was Selenium RC?

Selenium Remote Control was the first tool that let testers write automation code in a real programming language, using a separate RC Server process that relayed commands to the browser via JavaScript injection.

Limitations That Led to WebDriver

• Required running and managing a separate server process.
• Slower, due to the extra layer of communication.
• Limited support for newer browser features and security models.

Why It's Still Worth Knowing

Understanding RC's limitations explains why WebDriver was created and why it communicates directly with the browser instead of through an intermediary server.