diff --git a/components/Header/Header.jsx b/components/Header/Header.jsx
index 9258e3b..1f67761 100755
--- a/components/Header/Header.jsx
+++ b/components/Header/Header.jsx
@@ -8,42 +8,38 @@ export default function Header() {
   const { keycloak } = useKeycloak()
   const navigate = useNavigate();
 
-  const [authenticated, setAuthenticated] = useState(false);
+  const refreshToken = async () => {
+    try {
+      await keycloak.updateToken(30);
+    } catch (error) {
+      console.error('Failed to refresh token:', error);
+    }
+  }
 
-  
-  
+  useEffect(() => { refreshToken() }, [])
 
   if (keycloak.authenticated) {
+    localStorage.setItem("refreshToken", keycloak.refreshToken)
+    localStorage.setItem("token", keycloak.token)
     const userName = keycloak.tokenParsed.preferred_username;
     localStorage.setItem("username", userName)
   }
 
-  const [username, setUsername] = useState(() => localStorage.getItem("username"))
-
-  useEffect(() => {
-    if (keycloak.authenticated) {
-      const userName = keycloak.tokenParsed.preferred_username;
-      setUsername(userName)
-      localStorage.setItem("token", keycloak.token)
-      console.log("header", keycloak.token);
-      
-    }
-  }, [keycloak.authenticated])
-
 
   const logoutHandle = () => {
-    localStorage.removeItem("token")
+    
     localStorage.removeItem("username")
+    setIsAuthenticated(false)
   }
 
-  const stored_token = localStorage.getItem("token")
+  
 
   return (
     <div className="logo">
       <h1 onClick={() => navigate("/")}>Raman spectra search</h1>
       <div className="usersInfo">
-        <div className="username">{username}</div>
-        {stored_token ?
+        <div className="username">{localStorage.getItem("username")}</div>
+        {keycloak.authenticated ?
           <button className="shareBtn" onClick={() => {
             keycloak.logout()
             logoutHandle()
diff --git a/components/SearchComp/SearchComp.jsx b/components/SearchComp/SearchComp.jsx
index 417ec96..7601e10 100755
--- a/components/SearchComp/SearchComp.jsx
+++ b/components/SearchComp/SearchComp.jsx
@@ -1,8 +1,9 @@
 /* eslint-disable react/prop-types */
 import { AnimatePresence, motion } from "framer-motion";
-import { useState } from "react";
+import { useEffect, useState } from "react";
 import { ErrorBoundary } from "react-error-boundary";
 import { useLocation } from "react-router-dom";
+import { useKeycloak } from "@react-keycloak/web";
 import useSWR from "swr";
 import Chart from "../Chart/Chart";
 import SideBarToggle from "../Icons/SideBarToggle";
@@ -19,14 +20,15 @@ export default function SearchComp({ setDomain }) {
   const location = useLocation();
   const queryParams = new URLSearchParams(location.search);
   const domainParams = queryParams.get("domain");
- 
   let [open, setOpen] = useState(true);
   let [imageSelected, setImageSelected] = useState(
     domainParams ? domainParams : ""
   );
-
+  
   let isNexusFile = false;
 
+
+  
   let [reference, setReference] = useState("*");
   let [provider, setProvider] = useState("*");
   let [pages, setPages] = useState("0");
diff --git a/src/main.jsx b/src/main.jsx
index 74bd7c2..8b9b8c2 100755
--- a/src/main.jsx
+++ b/src/main.jsx
@@ -17,17 +17,31 @@ const router = createBrowserRouter(
   { basename: "/search" }
 );
 
+if ('serviceWorker' in navigator) {
+  window.addEventListener('load', () => {
+      navigator.serviceWorker.register('../utils/serviceWorker.js')
+          .then(registration => {
+              console.log('Service Worker registered with scope:', registration.scope);
+          })
+          .catch(error => {
+              console.log('Service Worker registration failed:', error);
+          });
+  });
+}
+
+
 ReactDOM.createRoot(document.getElementById("root")).render(
- <ReactKeycloakProvider authClient={keycloak}
+  <ReactKeycloakProvider authClient={keycloak}
     initOptions={{
       onLoad: 'check-sso',
       checkLoginIframe: false,
-      // Optionally add automatic silent refresh
       silentCheckSsoRedirectUri:
         window.location.origin + '/silent-check-sso.html',
     }}
   >
-    <RouterProvider router={router} />
+    <React.StrictMode>
+      <RouterProvider router={router} />
+    </React.StrictMode>
   </ReactKeycloakProvider>
 
 );
diff --git a/utils/auth.jsx b/utils/auth.jsx
deleted file mode 100644
index 55b12e8..0000000
--- a/utils/auth.jsx
+++ /dev/null
@@ -1,32 +0,0 @@
-// import Keycloak from "keycloak-js"
-// const client = new Keycloak({
-
-//     "realm": "nano",
-//     "url": "https://iam.ideaconsult.net/auth",
-//     "ssl-required": "external",
-//     "resource": "idea-ui",
-//     "public-client": true,
-//     "confidential-port": 0,
-//     "clientId": 'idea-ui'
-
-// })
-
-
-
-// const doLogin = async () => {
-    
-//     const isAuth = await client.init({ onLoad: "login-required" }).then((res) => res)
-
-    
-
-
-
-    
-
-//     return isAuth
-
-// }
-
-
-
-// export default doLogin;
\ No newline at end of file
diff --git a/utils/fetcher.jsx b/utils/fetcher.jsx
index 52fe8e0..429f123 100644
--- a/utils/fetcher.jsx
+++ b/utils/fetcher.jsx
@@ -2,9 +2,6 @@ import keycloak from "./keycloak";
 
 const stored_token = localStorage.getItem("token")
 
-console.log("token", keycloak.token);
-console.log("stored_token", stored_token);
-
 
 const fetcher = (url) => fetch(url, {
     headers: {
diff --git a/utils/serviceWorker.js b/utils/serviceWorker.js
new file mode 100644
index 0000000..ba612d3
--- /dev/null
+++ b/utils/serviceWorker.js
@@ -0,0 +1,26 @@
+self.addEventListener('fetch', (e) => {
+    var url = new URL(e.request.url);
+    if (
+        url.origin.endsWith(".ideaconsult.net")
+        && (e.request.destination === 'image')         
+        && isGeneratedImage(url)
+        && url.origin.startsWith("https://")
+        && (url.origin !== "https://iam.ideaconsult.net")
+        && (url.origin !== "https://idp.ideaconsult.net")
+        && (e.request.method == "GET") 
+        && (e.request.headers["Authorization"] == undefined)) {
+        e.respondWith(localStorage.getItem("token").then((value) => {
+            var _headers = {};
+            var header = "Bearer "+value;
+            _headers["Authorization"] = header;
+            const newRequest = new Request(e.request, {
+                headers : {"Authorization" : header},
+                mode: "cors"
+            });
+            return fetch(newRequest); 
+
+        }) )
+    } else {
+        return fetch(e.request);
+    }    
+});
diff --git a/utils/test.jsx b/utils/test.jsx
new file mode 100644
index 0000000..6db4b55
--- /dev/null
+++ b/utils/test.jsx
@@ -0,0 +1,48 @@
+import React, { useEffect, useState } from 'react';
+import { useKeycloak } from '@react-keycloak/web';
+
+const App = () => {
+  const { keycloak } = useKeycloak();
+  const [token, setToken] = useState(null);
+  const [isAuthenticated, setIsAuthenticated] = useState(false);
+
+  useEffect(() => {
+    if (keycloak && keycloak.authenticated) {
+      setIsAuthenticated(true);
+      setToken(keycloak.token);
+
+      const intervalId = setInterval(() => {
+        if (keycloak.isTokenExpired(30)) {
+          keycloak.updateToken(30).then((refreshed) => {
+            if (refreshed) {
+              console.log('Token automatically refreshed');
+              setToken(keycloak.token); // Update token state
+            } else {
+              console.warn('Token still valid, no need to refresh');
+            }
+          }).catch((error) => {
+            console.error('Failed to refresh token', error);
+          });
+        }
+      }, 60000); // Check every 60 seconds
+
+      return () => clearInterval(intervalId); // Cleanup on unmount
+    }
+  }, [keycloak]);
+
+  return (
+    <div>
+      <h1>ReactKeycloakProvider Token Management</h1>
+      {isAuthenticated ? (
+        <div>
+          <p>Authenticated! Token is available.</p>
+          <pre>{token}</pre>
+        </div>
+      ) : (
+        <p>Not authenticated</p>
+      )}
+    </div>
+  );
+};
+
+export default App;