add cors setting

app.js

@@ -2,10 +2,16 @@ const config = require('./config')
 const Koa = require('koa')
 const koaLogger = require('koa-logger')
 const koaSession = require('koa-session2')
+const cors = require('kcors')
 const router = require('./route')
 const app = new Koa()
 
 app.use(koaLogger())
+app.use(cors({
+  origin: (c) => {
+    return c.get('Origin')
+  }
+}))
 app.use(koaSession())
 app.use(router.allowedMethods())
 app.use(router.routes())

package.json

@@ -20,6 +20,7 @@
     "dotenv": "^6.0.0",
     "gm": "^1.23.1",
     "ioredis": "^3.2.2",
+    "kcors": "^2.2.2",
     "koa": "^2.5.1",
     "koa-body": "^4.0.3",
     "koa-logger": "^3.2.0",