Everything is working fine locally. But when deployed to Azure, loading the css shows this error:
Resource interpreted as Stylesheet but transferred with MIME type text/plain
It happens in all the browsers.
The application loads a spa in react.
These are the middlewares I am using in this order.
if (Environment.IsDevelopment())
        {
            app.UseDeveloperExceptionPage();
        }
        else
        {
            app.UseExceptionHandler("/Error");
            // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
            app.UseHsts();
        }
        app.UseHttpsRedirection();            
        app.UseStatusCodePagesWithReExecute("/Home/Error", "?statusCode={0}");
        app.UseStaticFiles();
        app.UseSpaStaticFiles();
        app.UseOurCustomAuthenticate();
        app.UseMvc(routes =>
        {
            routes.MapRoute(
                name: "default",
                template: "{controller=Home}/{action}/{id?}");
            routes.MapRoute(
                name: "api",
                template: "api/{controller}/{action}/{id?}");
        });
        app.UseSpa(spa =>
        {
            spa.Options.SourcePath = "ClientApp";
            if (Environment.IsDevelopment())
            {
                spa.UseReactDevelopmentServer(npmScript: "start");
            }
        });
The custom authenticate middleware that we are using checks if the path starts with "/styles" it will not do anything and let it load.
This is the cshtml file where I include the css file:
<!DOCTYPE HTML>
<html>
<head>        
    <link rel="stylesheet" type="text/css" href="~/styles/notFound.css">
</head>
<body class="body-content">
This is where the styles and images are
The image is being loaded properly on the server, only the style have this problem.
So in my custom middleware I did this:
if (httpContext.Request.Path.StartsWithSegments("/styles"))
{
     httpContext.Response.ContentType = "text/css";
}
Now the content-type is correct in the network tab, but the style is not still loading. When I click on the css file it is an empty file.
I have read a lot of posts regarding this issue, but couldn't still solve it.

