ProtectedSessionStorage

[Kuldip4053]

@Inject ProtectedSessionStorage SessionStorage
@code {
private string username = "";
private string password = "";
private async Task Loginhandle()
{
// Dummy check
if (username == "admin" && password == "123")
{
UserSession.Username = username;
await SessionStorage.SetAsync("username", username);
Navigation.NavigateTo("/");
}
}
}

the session was not sync on multiple tab at same browser window.

Expected Behavior

No response

Steps To Reproduce

No response

Exceptions (if any)

No response

.NET Version

No response

Anything else?

No response

[javiercn]

@Kuldip4053 thanks for contacting us.

Session storage only works for the current session and does not expand across tabs. What you are looking for is localStorage.

[Kuldip4053]

I need server-side session management in Blazor Server that behaves like an MVC session, with the following requirements:

Session should be managed completely on the server side.

Multi-tab sync: If a user logs in or updates session data in one tab, it should be immediately reflected in all other open tabs in the same browser.

Session must persist on page refresh.

Session should NOT persist across:

Other browsers

Private/incognito windows

Different devices

The session should automatically end when the browser (or tab) is closed.

Restrictions:

❌ No JavaScript – All handling must be done with built-in .NET/Blazor Server capabilities.

❌ No Entity Framework or ORM – Use only in-memory or custom server-side storage.

❌ No third-party libraries – Stick to native .NET/Blazor tools.

❌ No cookies – Avoid cookies for any part of session tracking.

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