修正

config/index.js

@@ -46,7 +46,7 @@ module.exports = {
   build: {
     devEnv: require('./dev.env'),
     testEnv: require('./test.env'),
-    prodEnv: require('./dev.env'),
+    prodEnv: require('./prod.env'),
     // Template for index.html
     index: path.resolve(__dirname, '../dist/index.html'),