Merge pull request #1696 from Shirtiny/master

Supports the configuration of   `Access-Control-Allow-Origin`  through environment variables.

server.js

@@ -133,6 +133,7 @@ async function checkVersion() {
  */
 async function consturctServer(moduleDefs) {
   const app = express()
+  const { CORS_ALLOW_ORIGIN } = process.env
   app.set('trust proxy', true)
 
   /**
@@ -142,7 +143,8 @@ async function consturctServer(moduleDefs) {
     if (req.path !== '/' && !req.path.includes('.')) {
       res.set({
         'Access-Control-Allow-Credentials': true,
-        'Access-Control-Allow-Origin': req.headers.origin || '*',
+        'Access-Control-Allow-Origin':
+          CORS_ALLOW_ORIGIN || req.headers.origin || '*',
         'Access-Control-Allow-Headers': 'X-Requested-With,Content-Type',
         'Access-Control-Allow-Methods': 'PUT,POST,GET,DELETE,OPTIONS',
         'Content-Type': 'application/json; charset=utf-8',