Update to new packages

GerstITS.Examples.Api/Startup.cs

@@ -1,6 +1,6 @@
 using GerstITS.Web.Api;
-using GerstITS.Web.Api.Builder;
 using GerstITS.Web.Api.Hosting;
+using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.Extensions.Hosting;
 
@@ -12,19 +12,21 @@ namespace GerstITS.Examples.Api
 
         protected override void ConfigureApplication(IApplicationBuilder applicationBuilder, IWebHostEnvironment webHostEnvironment)
         {
-            if (webHostEnvironment.IsDevelopment())
+            if (webHostEnvironment.IsProduction())
+                applicationBuilder.UseHstsOfServerConfiguration();
+            else
                 applicationBuilder.UseDeveloperExceptionPage()
                                   .UseSwagger();
-            else
-                applicationBuilder.UseHsts();
 
-            applicationBuilder.UseHttpsRedirection()
+            applicationBuilder.UseCorsOfServerConfiguration()
+                              .UseForwardedHeadersOfServerConfiguration()
+                              .UseHttpsRedirectionOfServerConfiguration()
                               .UseAuthentication()
                               .UseAuthorization()
                               .UseRouting()
                               .UseEndpoints(endpoints => endpoints.MapControllers())
                               .UseRewriteUnknownPathsToIndexSite(ApplicationEnvironment.WebApi.BaseUrl)
-                              .UseStaticFiles();
+                              .UseSystemIndependentStaticFiles();
         }
 
         #endregion