What is CORS in Node.js?

CORS (Cross-Origin Resource Sharing) controls whether browsers allow requests between different origins. In Node.js applications, CORS middleware is commonly used to configure which domains can access backend APIs and what methods are allowed.

Share this Resource

Spread the knowledge with other engineering candidates.

Was this card helpful?

Help us rank high-quality interview preparation materials.

Related Drills

How would you handle global error boundaries in Express or Node.js backend apps?

Study card

What is Node.js and why is it used?

Study card

What is the difference between Node.js and JavaScript?

Study card

Accelerate Your Prep

Get instant feedbacks, dynamic voice simulations, and keyword scorecard matchers.

AI Mock Interview

ATS Resume Scorer

Algorithmic Sandbox

Jeevan Bhargav

Audited by Creator

This answer is calibrated for technical interviews. Verify benchmarks in local sandboxes before deploying.