Update nuxt.config.js

nuxt.config.js

@@ -53,7 +53,7 @@ module.exports = {
         }
     },
     env: {
-      host:((process.env.host == undefined || process.env.host=="")?"https://xxtest.upyuns.com":process.env.host)
+      host:((env[process.env.MODE].ENV_API == undefined || env[process.env.MODE].ENV_API=="")?"https://xxtest.upyuns.com":env[process.env.MODE].ENV_API)
     },
     generate: {
       routes: [