Configure CORS for Browser Clients
Allow trusted origins to call your API.
Why Browsers Block Calls
A browser refuses cross-origin requests by default for safety. This same-origin policy stops one site from quietly reading another.
What CORS Actually Is
CORS is a set of response headers that say which other origins may call your API. It opens the door on purpose.
All lessons in this course
- Throttle Requests with Flask-Limiter
- Configure CORS for Browser Clients
- Security Headers and HTTPS
- Validate Input to Stop Injection