Describe the bug
When accessing localhost:3000, the frontend container (keep-frontend-dev-1) throws a TypeError: localStorage.getItem is not a function.

To Reproduce
1、Deploy the development version locally for the first time: run git clone https://github.com/keephq/keep.git && cd keep
2、Execute docker compose -f docker-compose.dev.yml up
3、Access localhost:3000
4、The interface shows a 500 error, and the frontend container logs display "TypeError: localStorage.getItem is not a function".

Expected behavior
The UI homepage should load correctly.

Screenshots
keep-frontend-dev-1 | ○ Compiling middleware ...
keep-frontend-dev-1 | ✓ Compiled middleware in 2.3s
keep-frontend-dev-1 | ✓ Ready in 11.7s
keep-frontend-dev-1 | ⚠ Webpack is configured while Turbopack is not, which may cause problems.
keep-frontend-dev-1 | ⚠ See instructions if you need to configure Turbopack:
keep-frontend-dev-1 | https://nextjs.org/docs/app/api-reference/next-config-js/turbo
keep-frontend-dev-1 |
keep-frontend-dev-1 | Auth debug mode enabled
keep-frontend-dev-1 | Auth config: {
keep-frontend-dev-1 | debug: true,
keep-frontend-dev-1 | trustHost: true,
keep-frontend-dev-1 | providers: [
keep-frontend-dev-1 | {
keep-frontend-dev-1 | id: 'credentials',
keep-frontend-dev-1 | name: 'Credentials',
keep-frontend-dev-1 | type: 'credentials',
keep-frontend-dev-1 | credentials: {},
keep-frontend-dev-1 | authorize: [Function: authorize],
keep-frontend-dev-1 | options: { name: 'NoAuth', credentials: {}, authorize: [Function: authorize] }
keep-frontend-dev-1 | }
keep-frontend-dev-1 | ],
keep-frontend-dev-1 | pages: { signIn: '/signin', error: '/error' },
keep-frontend-dev-1 | session: { strategy: 'jwt', maxAge: 2592000 },
keep-frontend-dev-1 | callbacks: {
keep-frontend-dev-1 | authorized: [Function: authorized],
keep-frontend-dev-1 | jwt: [Function: jwt],
keep-frontend-dev-1 | session: [Function: session]
keep-frontend-dev-1 | }
keep-frontend-dev-1 | }
keep-frontend-dev-1 | [auth][warn][debug-enabled] Read more: https://warnings.authjs.dev
keep-frontend-dev-1 | Redirecting /incidents to signin page because user is not authenticated
keep-frontend-dev-1 | Allowing request to pass through http://localhost:3000/signin?callbackUrl=http%3A%2F%2Flocalhost%3A3000%2Fincidents
keep-frontend-dev-1 | Request URL: http://localhost:3000/signin?callbackUrl=http%3A%2F%2Flocalhost%3A3000%2Fincidents
keep-frontend-dev-1 | ○ Compiling /signin ...
keep-frontend-dev-1 | Browserslist: browsers data (caniuse-lite) is 8 months old. Please run:
keep-frontend-dev-1 | npx update-browserslist-db@latest
keep-frontend-dev-1 | Why you should do it regularly: https://github.com/browserslist/update-db#readme
keep-frontend-dev-1 | ✓ Compiled /signin in 37.4s
keep-frontend-dev-1 | Auth debug mode enabled
keep-frontend-dev-1 | Auth config: {
keep-frontend-dev-1 | debug: true,
keep-frontend-dev-1 | trustHost: true,
keep-frontend-dev-1 | providers: [
keep-frontend-dev-1 | {
keep-frontend-dev-1 | id: 'credentials',
keep-frontend-dev-1 | name: 'Credentials',
keep-frontend-dev-1 | type: 'credentials',
keep-frontend-dev-1 | credentials: {},
keep-frontend-dev-1 | authorize: [Function: authorize],
keep-frontend-dev-1 | options: [Object]
keep-frontend-dev-1 | }
keep-frontend-dev-1 | ],
keep-frontend-dev-1 | pages: { signIn: '/signin', error: '/error' },
keep-frontend-dev-1 | session: { strategy: 'jwt', maxAge: 2592000 },
keep-frontend-dev-1 | callbacks: {
keep-frontend-dev-1 | authorized: [Function: authorized],
keep-frontend-dev-1 | jwt: [AsyncFunction: jwt],
keep-frontend-dev-1 | session: [AsyncFunction: session]
keep-frontend-dev-1 | }
keep-frontend-dev-1 | }
keep-frontend-dev-1 | Starting Keep frontend with auth type: undefined
keep-frontend-dev-1 | (node:47) Warning: --localstorage-file was provided without a valid path
keep-frontend-dev-1 | (Use node --trace-warnings ... to show where the warning was created)
keep-frontend-dev-1 | ⨯ [TypeError: localStorage.getItem is not a function] {
keep-frontend-dev-1 | digest: '3736255684'
keep-frontend-dev-1 | }
keep-frontend-dev-1 | [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | ⨯ [TypeError: localStorage.getItem is not a function] { page: '/signin' }
keep-frontend-dev-1 | ○ Compiling /_error ...
keep-frontend-dev-1 | ✓ Compiled /_error in 3.4s
keep-frontend-dev-1 | [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | ⨯ [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | ⨯ [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | ⨯ unhandledRejection: [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | ⨯ unhandledRejection: [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | ⨯ [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | [TypeError: localStorage.getItem is not a function] { page: '/signin' }
keep-frontend-dev-1 | [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | ⨯ unhandledRejection: [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | ⨯ unhandledRejection: [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | GET /signin?callbackUrl=http://localhost:3000/incidents 500 in 42220ms
keep-frontend-dev-1 | GET /signin?callbackUrl=http://localhost:3000/incidents 500 in 25ms
keep-frontend-dev-1 | Redirecting /incidents to signin page because user is not authenticated
keep-frontend-dev-1 | Allowing request to pass through http://localhost:3000/signin?callbackUrl=http%3A%2F%2Flocalhost%3A3000%2Fincidents
keep-frontend-dev-1 | Request URL: http://localhost:3000/signin?callbackUrl=http%3A%2F%2Flocalhost%3A3000%2Fincidents
keep-frontend-dev-1 | ⨯ [TypeError: localStorage.getItem is not a function] {
keep-frontend-dev-1 | digest: '3736255684'
keep-frontend-dev-1 | }
keep-frontend-dev-1 | [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | ⨯ [TypeError: localStorage.getItem is not a function] { page: '/signin' }
keep-frontend-dev-1 | [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | ⨯ [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | ⨯ [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | ⨯ unhandledRejection: [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | ⨯ unhandledRejection: [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | ⨯ [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | [TypeError: localStorage.getItem is not a function] { page: '/signin' }
keep-frontend-dev-1 | [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | ⨯ unhandledRejection: [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | ⨯ unhandledRejection: [TypeError: localStorage.getItem is not a function]
keep-frontend-dev-1 | GET /signin?callbackUrl=http://localhost:3000/incidents 500 in 688ms
keep-frontend-dev-1 | GET /signin?callbackUrl=http://localhost:3000/incidents 500 in 17ms
keep-frontend-dev-1 | ○ Compiling /favicon.ico ...
keep-frontend-dev-1 | ✓ Compiled /favicon.ico in 1116ms
keep-frontend-dev-1 | GET /favicon.ico 200 in 1386ms .

Additional context
Environment: Windows 11, Docker Desktop, WSL2, Chrome.