Blazor webapp doesn't work on macos

### URL

https://dotnet.microsoft.com/en-us/learn/aspnet/blazor-tutorial/run

### Operating system

macos

### More information about your system

macos 15.4 on M1 (ARM)

### Description

Following the Blazor guide (dotnet new blazor, dotnet build, dotnet run) ends with a page that doesn't connect to server and CSS is not loading:

### dotnet --info

dotnet --info
.NET SDK:
Version: 9.0.203
Commit: dc7acfa194
Workload version: 9.0.200-manifests.9df47798
MSBuild version: 17.13.20+a4ef1e90f

Runtime Environment:
OS Name: Mac OS X
OS Version: 15.4
OS Platform: Darwin
RID: osx-arm64
Base Path: /usr/local/share/dotnet/sdk/9.0.203/

.NET workloads installed:
There are no installed workloads to display.
Configured to use loose manifests when installing new manifests.

Host:
Version: 9.0.4
Architecture: arm64
Commit: f57e6dc747

.NET SDKs installed:
9.0.203 [/usr/local/share/dotnet/sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 9.0.4 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.NETCore.App 9.0.4 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]

Other architectures found:
None

Environment variables:
Not set

global.json file:
Not found

Learn more:
https://aka.ms/dotnet/info

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