kcors

Cross-Origin Resource Sharing(CORS) for koa

Installation

$ npm i flclover-cors --save

Quick start

Enable cors with default options:

• origin: *
• allowMethods: GET,HEAD,PUT,POST,DELETE,PATCH

var koa = require('koa');
var cors = require('flclover-cors');

var app = koa();
app.use(cors());

cors(options)

/**
 * CORS middleware
 *
 * @param {Object} [options]
 *  - {String|Function(ctx)|GeneratorFunction(ctx)} origin `Access-Control-Allow-Origin`, default is '*'
 *  - {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} credentials `Access-Control-Allow-Credentials`
 *  - {Boolean} keepHeadersOnError Add set headers to `err.header` if an error is thrown
 * @return {Function}
 * @api public
 */

License

MIT