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Part S: Security
Lesson S1Track A 25 min

Securing your idea

A web app runs partly on your visitor's own computer, where anyone can read its code and watch its calls. Learn what that means, what must stay on a server, and see it for yourself in DevTools.

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  • The full lesson, step by step, for Windows and Mac
  • 2 copy-paste prompts that make the agent do the work
  • A checklist, and the fixes for what usually goes wrong
  • Your progress saved as you go