Add hosting bug workaround

Author: SteveSandersonMS

samples/Sample.Server/Startup.cs

@@ -7,6 +7,7 @@
 using Microsoft.AspNetCore.Components;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Http.Features;
 using Microsoft.AspNetCore.HttpsPolicy;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
@@ -34,6 +35,13 @@ public void ConfigureServices(IServiceCollection services)
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
         public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
         {
+            // Workaround for https://github.com/aspnet/AspNetCore/issues/13470
+            app.Use((context, next) =>
+            {
+                context.Features.Get<IHttpMaxRequestBodySizeFeature>().MaxRequestBodySize = null;
+                return next.Invoke();
+            });
+
             if (env.IsDevelopment())
             {
                 app.UseDeveloperExceptionPage();