aspnetcore: ASP.NET Core 8-p6 Blazor page does not load in new browser window

Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

WebAssembly application that is being migrated from .NET7 to .NET8 following instructions:

https://github.com/danroth27/Net8BlazorWebAssembly/blob/main/README.md

When I open a new browser tab and navigate to a razor page it sometimes loads, but most of the times, the request is “pending” in the network tab of the browser. I do see a few System.IO.IOExceptions exceptions:

System.IO.IOException: 'Unable to read data from the transport connection: The I/O operation has been aborted because of either a thread exit or an application request..'

Inner exception:

SocketException: The I/O operation has been aborted because of either a thread exit or an application request.

This is what the logs say:

info: Microsoft.AspNetCore.Hosting.Diagnostics[1] Request starting HTTP/2 GET https://localhost:5001/posts/pooling-bufferwriter - - - info: Microsoft.AspNetCore.Routing.EndpointMiddleware[0] Executing endpoint ‘/posts/{postname} (/posts/{postname})’

I see the InitailzieAsync and OnParametersSetAsync invoked. When I navigate to the same page from the “home page”, it loads correctly.

Expected Behavior

Page would load even when navigating to it from a new tab.

Steps To Reproduce

No response

Exceptions (if any)

I see some IO exceptions.

.NET Version

8.0.100-preview.6.23330.14

Anything else?

Microsoft.AspNetCore.App 8.0.0-preview.6.23329.11 Browser: Edge