diff --git a/src/main/webui/.eslintrc.json b/src/main/webui/.eslintrc.json
index f91204b..053a2f9 100644
--- a/src/main/webui/.eslintrc.json
+++ b/src/main/webui/.eslintrc.json
@@ -230,7 +230,7 @@
       "nonblock-statement-body-position": 2,
       "object-curly-newline": 2,
       "object-curly-spacing": [
-          2,
+          1,
           "never"
       ],
       "object-property-newline": 0,
diff --git a/src/main/webui/src/app/components/content/common/LoadingSpiner.jsx b/src/main/webui/src/app/components/content/common/LoadingSpiner.jsx
new file mode 100644
index 0000000..d9c90b0
--- /dev/null
+++ b/src/main/webui/src/app/components/content/common/LoadingSpiner.jsx
@@ -0,0 +1,22 @@
+/**
+ * Copyright (C) 2023 Red Hat, Inc. (https://github.com/Commonjava/indy-ui-service)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import React from 'react';
+
+export const LoadingSpiner = () =><div>
+      <span className="loader">Loading...</span>
+    </div>;
+
diff --git a/src/main/webui/src/app/components/content/remote/RemoteList.jsx b/src/main/webui/src/app/components/content/remote/RemoteList.jsx
index df6f139..0ab6f6e 100644
--- a/src/main/webui/src/app/components/content/remote/RemoteList.jsx
+++ b/src/main/webui/src/app/components/content/remote/RemoteList.jsx
@@ -20,6 +20,7 @@ import {ListJsonDebugger} from '../common/Debugger.jsx';
 import ListControl from "../common/ListControl.jsx";
 import {remoteOptionLegend as options, STORE_API_BASE_URL} from "../../ComponentConstants.js";
 import {StoreListingWidget} from '../common/StoreListingWidget.jsx';
+import {LoadingSpiner} from "../common/LoadingSpiner.jsx";
 import {Utils} from '#utils/AppUtils.js';
 import {jsonRest} from '#utils/RestClient.js';
 
@@ -52,8 +53,10 @@ export default function RemoteList() {
     enableDebug: false,
     message: ''
   });
+  const [loading, setLoading] = useState(true);
 
   useEffect(()=>{
+    setLoading(true);
     const fetchdData = async ()=>{
       const response = await jsonRest.get(`${STORE_API_BASE_URL}/${packageType}/remote`);
       if (response.ok){
@@ -81,10 +84,15 @@ export default function RemoteList() {
           });
         });
       }
+      setLoading(false);
     };
     fetchdData();
   }, [packageType]);
 
+  if (loading) {
+    return <LoadingSpiner />;
+  }
+
   return (
     <React.Fragment>
       <ListControl
diff --git a/src/main/webui/src/app/components/content/remote/RemoteView.jsx b/src/main/webui/src/app/components/content/remote/RemoteView.jsx
index 3f50d18..82ad4c3 100644
--- a/src/main/webui/src/app/components/content/remote/RemoteView.jsx
+++ b/src/main/webui/src/app/components/content/remote/RemoteView.jsx
@@ -21,6 +21,7 @@ import {StoreViewControlPanel as ControlPanel} from '../common/StoreControlPanel
 import {Hint, PasswordMask} from '../common/Hints.jsx';
 import {StoreViewBasicSection as BasicSection} from '../common/StoreBasicSections.jsx';
 import {StoreViewCapabilitiesSection} from '../common/StoreCapabilitiesSections.jsx';
+import {LoadingSpiner} from '../common/LoadingSpiner.jsx';
 // import ViewJsonDebugger from './Debugger.jsx';
 import {Filters} from '#utils/Filters.js';
 import {Utils} from '#utils/AppUtils.js';
@@ -155,9 +156,11 @@ export default function RemoteView() {
     raw: {},
     message: ''
   });
+  const [loading, setLoading] = useState(true);
   const {packageType, name} = useParams();
 
   useEffect(()=>{
+    setLoading(true);
     const fetchStore = async () => {
       const response = await jsonRest.get(`${STORE_API_BASE_URL}/${packageType}/remote/${name}`);
       if (response.ok){
@@ -186,11 +189,16 @@ export default function RemoteView() {
           Utils.logMessage(`Failed to get store data. Error reason: ${response.status}->${data}`);
         });
       }
+      setLoading(false);
     };
 
     fetchStore();
   }, [packageType, name]);
 
+  if (loading) {
+    return <LoadingSpiner />;
+  }
+
   const store = state.store;
   if(!Utils.isEmptyObj(store)) {
     return (
diff --git a/src/main/webui/src/app/components/styles/indy.css b/src/main/webui/src/app/components/styles/indy.css
index 200b45e..8b8d102 100644
--- a/src/main/webui/src/app/components/styles/indy.css
+++ b/src/main/webui/src/app/components/styles/indy.css
@@ -445,3 +445,12 @@ label, .label{
     float: right;
     margin-bottom: 6px;
 }
+
+.loader {
+  color: rgb(0, 0, 0);
+  display: inline-block;
+  position: relative;
+  font-size: 24px;
+  font-family: Arial, Helvetica, sans-serif;
+  box-sizing: border-box;
+}
diff --git a/src/main/webui/src/server/app.js b/src/main/webui/src/server/app.js
index 8a426b0..b96d59e 100644
--- a/src/main/webui/src/server/app.js
+++ b/src/main/webui/src/server/app.js
@@ -3,6 +3,7 @@ import compression from 'compression';
 import express from 'express';
 import path from 'path';
 import {Config} from './config/AppConfig';
+import {existsSync} from 'fs';
 
 const projectRoot = path.resolve(__dirname, '../../dist');
 const indexHtml=path.join(projectRoot+'/index.html');
@@ -38,33 +39,47 @@ app.get('/api/stats/version-info', (req, res) => {
 });
 
 const decideMockListFile = (packgeType, type) => {
-  const pkgToFileMapping = {"maven": "Maven", "npm": "NPM"};
+  const pkgToFileMapping = {"maven": "Maven", "generic-http": "Generic", "npm": "NPM"};
   const typeToFileMapping = {"remote": "Remote", "hosted": "Hosted", "group": "Group"};
-  return `./mock/list/Fake${pkgToFileMapping[packgeType]}${typeToFileMapping[type]}List.json`;
+  path.resolve(__dirname, './file-location');
+  return path.resolve(__dirname, `./mock/list/Fake${pkgToFileMapping[packgeType]}${typeToFileMapping[type]}List.json`);
 };
 
+
+const sleep = ms => new Promise(resolve => setTimeout(resolve, ms));
+
 // For store listing
-app.get(`${STORE_API_BASE}/:packageType/:type`, (req, res) => {
+app.get(`${STORE_API_BASE}/:packageType/:type`, async (req, res) => {
+  await sleep(2000);
   const [pkgType, type] = [req.params.packageType, req.params.type];
   if(pkgType==="_all"){
     // TODO: do all packageType for type handling here
   }
   const mockFile = decideMockListFile(pkgType, type);
-  const list = require(mockFile);
-  res.status(200).json(list);
+  if(existsSync(mockFile)){
+    const list = require(mockFile);
+    res.status(200).json(list);
+  }else{
+    res.status(404).json({error: "No such stores!"});
+  }
 });
 
 // For single store get
-app.get(`${STORE_API_BASE}/:packageType/:type/:name`, (req, res) => {
+app.get(`${STORE_API_BASE}/:packageType/:type/:name`, async (req, res) => {
+  await sleep(1000);
   const [pkgType, type, name] = [req.params.packageType, req.params.type, req.params.name];
   if(pkgType && type && name){
     const mockListFile = decideMockListFile(pkgType, type);
-    const repoList = require(mockListFile);
-    const result = repoList.items.find(item=>item.name===name);
-    if(result){
-      res.status(200).json(result);
+    if(existsSync(mockListFile)){
+      const repoList = require(mockListFile);
+      const result = repoList.items.find(item=>item.name===name);
+      if(result){
+        res.status(200).json(result);
+      }else{
+        res.status(404).json({error: "No such store!"});
+      }
     }else{
-      res.status(404).json({error: "No such store!"});
+      res.status(404).json({error: "No such stores!"});
     }
   }else{
     res.status(400).json({error: "Missing store name"});