Application Security
Enabling & Customizing CORS in Your TypeScript REST API
Modern web apps often need to fetch resources from different domains. **CORS** defines how servers declare which origins can make requests. By default, browsers block cross-origin requests, so you'll configure your Express server to respond with the necessary headers.
Express.js
TypeScript
4 lessons
10 practices
2 hours
Security Architecture and Threat Modeling
Course details
Implementing Basic CORS Security
Route Specific CORS Configuration
Meet Cosmo:
The smartest AI guide in the universe
Our built-in AI guide and tutor, Cosmo, prompts you with challenges that are built just for you and unblocks you when you get stuck.

Join the 1M+ learners on CodeSignal
Be a part of our community of 1M+ users who develop and demonstrate their skills on CodeSignal