Switching this app to server-side hosting results in blank screen

[netbitshift]

Trying to convert this app from client-side to server-side. I believe I have everything changed over

• Index.html in /wwwroot using _framework/blazor.server.js instead of blazor.webassembly.js
• Server project, in Startup.cs, change ConfigureServices and Configure to use AddServerSideBlazor

Solution code builds fine, but when browser loads, I just get a blank screen with no errors in the dev console.
Might be related to the issue mentioned here, but not sure
https://blog.jonblankenship.com/2018/11/02/experiences-converting-from-client-side-to-server-side-blazor/

What can I check?

I have several .net core sdk's installed
.NET Core SDKs installed:
1.0.4 [C:\Program Files\dotnet\sdk]
1.1.0 [C:\Program Files\dotnet\sdk]
2.0.2 [C:\Program Files\dotnet\sdk]
2.1.2 [C:\Program Files\dotnet\sdk]
2.1.4 [C:\Program Files\dotnet\sdk]
2.1.103 [C:\Program Files\dotnet\sdk]
2.1.201 [C:\Program Files\dotnet\sdk]
2.1.202 [C:\Program Files\dotnet\sdk]
2.1.300 [C:\Program Files\dotnet\sdk]
2.1.403 [C:\Program Files\dotnet\sdk]
2.1.500 [C:\Program Files\dotnet\sdk]
2.2.100 [C:\Program Files\dotnet\sdk]

[netbitshift]

Why am I doing this you might ask? Just because I want to fiddle with the architecture. I can see the case where someone wants to switch from one model to the other.