GMT koa deprecated Support for generators will be removed in v3. See the documentation for examples of how to convert old middleware https://github.com/koajs/koa/blob/master/docs/migration.md at server\index.js:6:5

[yoonasy]

GMT koa deprecated Support for generators will be removed in v3. See the documentation for examples of how to convert old middleware https://github.com/koajs/koa/blob/master/docs/migration.md at server\index.js:6:5

app.use(cors())

[Yiyu He]

you should use @koa/cors

[yoonasy]

@dead-horse thank you

[Oros Dionis]

thank you, @dead-horse!