WebDiffer keeps loading on my browser upon Visual Studio 2019 compilation

[angelochu7-zz]

Hi,
I am using Visual Studio 2019 on Windows 10 and try to compile and run the WebDiffer project on browser but it just keeps loading forever.
I changed the target framework to netcore 3.1 for the WebDiffer project and change to netstandard 2.0 as target frameworks for diffplex project as well. There are no error message from the error list in Visual Studio. Visual Studio itself caused the problem has been ruled out as I can create a web app in Visual Studio and run it without problem using netcore 3.1.
Please kindly give me your suggestions if you have any ideas.

[ashahabov]

I had the same issue. Changed IIS Express on WebDiffer (Kestrel) and it works.

[mmanela]

@angelochu7 Does the suggestion from @adamshakhabov solve your issue?