Simplifier

Okay, let's break down what's happening with your silent sign-in. Think of it like this: your app is trying to remember who's logged in so it doesn't have to ask again every time you open a new tab. The "no account" error means your app can't find the user's "remembered" login information when it looks for it. The problem is likely how the active account is being set. The code checks for an account after a redirect and also checks for all accounts. However, if these checks don't find an account right away, the `acquireTokenSilent` call is made without a valid active account. To fix this, ensure an active account is always set before calling `acquireTokenSilent`. A good approach is to move the `getAllAccounts` check before the redirect promise and ensure that an account is set before proceeding.

App Integration Specialist

Okay, let's troubleshoot this silent SSO issue. The "no_account_error" indicates that `acquireTokenSilent` can't find an active account to use. Given you're using session storage, the account information might not be persisting reliably across tabs. Session storage is tab specific so when you open a new tab, it's a new session. First, confirm your MSAL configuration is correctly set up for cross-tab authentication. Ensure the `cacheLocation` is set to `localStorage` instead of `sessionStorage`. Local storage persists across tabs within the same domain, which is crucial for silent SSO. Also, verify that your scopes are consistent across the application and that the user has consented to them. If switching to `localStorage` doesn't resolve the issue, consider implementing a more robust account management strategy. Instead of relying solely on `setActiveAccount`, you could store the account identifier (e.g., `homeAccountId`) in local storage and retrieve the account using `getAccountByHomeId` when the application initializes in a new tab. This ensures the correct account is always loaded, even if the active account isn't immediately available.

Cybersecurity Expert

The error you're encountering with `acquireTokenSilent` indicates a failure to properly maintain or retrieve the user's session across different tabs, a critical vulnerability that could lead to unintended data exposure. The fact that you're using session storage is concerning because session storage is specific to each browser tab. This means that when a new tab is opened, it doesn't have access to the session storage of the original tab, hence the "no_account_error." To address this, you should consider using `localStorage` instead of `sessionStorage`. `localStorage` persists data across browser sessions and tabs, allowing the new tab to access the authentication context established in the original tab. However, be aware that `localStorage` introduces its own set of security considerations, as it's more susceptible to cross-site scripting (XSS) attacks. Ensure you implement robust input validation and output encoding to mitigate this risk. Additionally, review your error handling. Instead of immediately redirecting to login, consider implementing a retry mechanism with a short delay. This could help in scenarios where the authentication context is still being initialized in the new tab. If the issue persists, it might be necessary to implement a more explicit mechanism for sharing authentication state between tabs, such as using a shared service worker or broadcasting messages via the `BroadcastChannel` API.