Phase 16 · Security Across the Stack
TopicsCORS Configuration
Part of the Full Stack Developer Roadmap.
Summary
Properly configuring which origins your API allows — too permissive is a security smell, too strict breaks your own legitimate frontend.
How to Learn This
- 1Configure CORS to allow only your actual frontend's origin(s), not a wildcard.
- 2Test that both your local and production frontend origins work correctly.
- 3Confirm a request from an unrelated origin is correctly blocked.
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