Add CORS Support to API

Express.js

Node.js

Technical Specification

Enable CORS for your API so it can be consumed from a different origin (e.g., React frontend).

Input/Output Samples

Input:Browser fetch from different origin

Output:No CORS error

Optimal Logic Path

const cors = require("cors");
app.use(cors());

Architectural Deep-Dive

CORS headers allow browsers to safely make cross-origin requests to your API.