@koa/cors

Cross-Origin Resource Sharing(CORS) for koa

Installation

$ npm install @koa/cors --save

Quick start

Enable cors with default options:

• origin: request Origin header
• allowMethods: GET,HEAD,PUT,POST,DELETE,PATCH

const Koa = require('koa');
const cors = require('@koa/cors');

const app = new Koa();
app.use(cors());

cors(options)

/**
 * CORS middleware
 *
 * @param {Object} [options]
 *  - {String|Function(ctx)} origin `Access-Control-Allow-Origin`, default is request Origin header
 *  - {String|Array} allowMethods `Access-Control-Allow-Methods`, default is 'GET,HEAD,PUT,POST,DELETE,PATCH'
 *  - {String|Array} exposeHeaders `Access-Control-Expose-Headers`
 *  - {String|Array} allowHeaders `Access-Control-Allow-Headers`
 *  - {String|Number} maxAge `Access-Control-Max-Age` in seconds
 *  - {Boolean|Function(ctx)} credentials `Access-Control-Allow-Credentials`, default is false.
 *  - {Boolean} keepHeadersOnError Add set headers to `err.header` if an error is thrown
 *  - {Boolean} secureContext `Cross-Origin-Opener-Policy` & `Cross-Origin-Embedder-Policy` headers.', default is false
 *  - {Boolean} privateNetworkAccess handle `Access-Control-Request-Private-Network` request by return `Access-Control-Allow-Private-Network`, default to false
 * @return {Function} cors middleware
 * @api public
 */

License

MIT

Contributors

fengmk2	dead-horse	omsmith	jonathanong	AlphaWong	cma-skedulo
erikfried	j-waaang	ltomes	lfreneda	matthewmueller	PlasmaPower
swain	TyrealHu	xg-wang	lishengzxc	mcohen75

This project follows the git-contributor spec, auto updated at Fri Aug 19 2022 23:48:53 GMT+0800.