CSS isolation feature has been now implemented in .net 5 preview 8 for Blazor, and I confirmed it's working in Blazor.

However, it seems that css isolation feature is not working in traditional Asp.Net Core Web Application.
Is this feature being planned for the traditional Asp.Net Core Web Application?
If not, it would be great if it will be planned.

For example, if there is a Login.cshtml, and if I create Login.cshtml.css, I would like the content of Login.cshtml.css to be automatically injected into <style> portion of Login.cshtml.