diff --git a/app/src/RedocPage/RedocPage.js b/app/src/RedocPage/RedocPage.js
index 77cb1da..62a04f9 100644
--- a/app/src/RedocPage/RedocPage.js
+++ b/app/src/RedocPage/RedocPage.js
@@ -7,7 +7,11 @@ import { Link } from 'react-router-dom'
 import SelectApi from '../SelectApi/SelectApi';
 
 
-function prepareSpec(json) {
+function prepareSpec(json, {server}) {
+  if (server) {
+    json.servers = [{url: server}]
+  }
+
   const serverEnv = window._env_.SERVER_ENV;
   if(serverEnv && serverEnv !== '' && json && json.servers && Array.isArray(json.servers)) {
     const regex = new RegExp(serverEnv)
@@ -21,7 +25,7 @@ class RedocPage extends Component {
     super(props);
 
     this.state = {
-      availableApis: window._env_.URLS.map(item => ({ value: slugify(item.name).toLowerCase(), label: item.name, url: item.url })),
+      availableApis: window._env_.URLS.map(item => ({ value: slugify(item.name).toLowerCase(), label: item.name, url: item.url, server: item.server })),
       activeApi: {
         url: ''
       },
@@ -59,14 +63,15 @@ class RedocPage extends Component {
         return res.json();
       })
       .then((json) => {
-        const spec = prepareSpec(json);
+        const spec = prepareSpec(json, state.activeApi);
         this.setState({
           spec,
           specIsLoaded: true,
         })
       }).catch((err) => {
-      console.log(err);
+      // console.log(err);
       this.setState({
+        spec: undefined,
         specIsLoaded: true,
       })
     })
diff --git a/docker-compose.yml b/docker-compose.yml
index 669b313..39e48ff 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -6,4 +6,4 @@ services:
     ports:
       - "8081:80"
     environment:
-      URLS: "[{url: 'https://petstore.swagger.io/v2/swagger.json', name: 'Petshop'},{url: 'https://api.apis.guru/v2/specs/instagram.com/1.0.0/swagger.yaml', name: 'Instagram'}]"
+      URLS: "[{url: 'https://petstore.swagger.io/v2/swagger.json', name: 'Petshop', server: 'http://example.com/foo'},{url: 'https://api.apis.guru/v2/specs/instagram.com/1.0.0/swagger.yaml', name: 'Instagram'}]"