Blazorise doesn't work on .NET 8 Blazor WebApp?

[Navusas]

I have tried to upgrade my project from .NET 7 to .NET 8 (Blazor Server WebApp), but keep hitting various issues and blockers while doing that.

I haven't changed anything during migration, when it comes to Blazorise itself.

At first, I spent time figuring out why I was getting this error (stack trace was useless):

InvalidOperationException: Synchronous operations are disallowed. Call WriteAsync or set AllowSynchronousIO to true instead.

And that is because of me using ThemeProvider ir App.razor:

<Blazorise.ThemeProvider Theme="theme">
    <Router AppAssembly="@typeof(App).Assembly">
    ...
    </Router>
</Blazorise.ThemeProvider>

Figured out this can be "fixed" by allowing synchronous IO in Program.cs like this:

 builder.Services.Configure<KestrelServerOptions>(options =>
 {
     options.AllowSynchronousIO = true;
 });

But even with this, Blazorise is not working as expected. When I try to access it through URL, the Layout / Sidebar doesn't work. The _context.Blazorise.blazorise.css and others also cannot be find....

Anybody else having these issues? If no, any idea what I could be doing wrong?

[Navusas]

This may be better as an issue than discussion. Opened an issue instead
#4991