diff --git a/examples/WireMock.Net.Console.Proxy.NETCoreApp2/Program.cs b/examples/WireMock.Net.Console.Proxy.NETCoreApp2/Program.cs
index c7f923e1b..73c9e3403 100644
--- a/examples/WireMock.Net.Console.Proxy.NETCoreApp2/Program.cs
+++ b/examples/WireMock.Net.Console.Proxy.NETCoreApp2/Program.cs
@@ -3,6 +3,7 @@
 using System.Threading;
 using System.Threading.Tasks;
 using Newtonsoft.Json;
+using WireMock.Logging;
 using WireMock.RequestBuilders;
 using WireMock.ResponseBuilders;
 using WireMock.Server;
@@ -14,9 +15,6 @@ class Program
     {
         static void Main(string[] args)
         {
-            RunTestDifferentPort().Wait(20000); // prints "1"
-            RunTestDifferentPort().Wait(20000); // prints "1"
-
             var server = WireMockServer.Start(new WireMockServerSettings
             {
                 Urls = new[] { "http://localhost:9091", "https://localhost:9443" },
@@ -29,34 +27,18 @@ static void Main(string[] args)
                     SaveMapping = true,
                     SaveMappingToFile = false,
                     ExcludedHeaders = new[] { "dnt", "Content-Length" }
-                }
+                },
+                Logger= new WireMockConsoleLogger()
             });
 
-            server.LogEntriesChanged += (sender, eventRecordArgs) =>
-            {
-                System.Console.WriteLine(JsonConvert.SerializeObject(eventRecordArgs.NewItems, Formatting.Indented));
-            };
+            //server.LogEntriesChanged += (sender, eventRecordArgs) =>
+            //{
+            //    System.Console.WriteLine(JsonConvert.SerializeObject(eventRecordArgs.NewItems, Formatting.Indented));
+            //};
 
             System.Console.WriteLine("Press any key to stop the server");
             System.Console.ReadKey();
             server.Stop();
         }
-
-        private static async Task RunTestDifferentPort()
-        {
-            var server = WireMockServer.Start();
-
-            server.Given(Request.Create().WithPath("/").UsingGet())
-                .RespondWith(Response.Create().WithStatusCode(200).WithBody("Hello"));
-
-            Thread.Sleep(1000);
-
-            var response = await new HttpClient().GetAsync(server.Urls[0]);
-            response.EnsureSuccessStatusCode();
-
-            System.Console.WriteLine("RunTestDifferentPort - server.LogEntries.Count() = " + server.LogEntries.Count());
-
-            server.Stop();
-        }
     }
 }
diff --git a/examples/WireMock.Net.Console.Proxy.NETCoreApp2/WireMock.Net.Console.Proxy.NETCoreApp2.csproj b/examples/WireMock.Net.Console.Proxy.NETCoreApp2/WireMock.Net.Console.Proxy.NETCoreApp2.csproj
index a02ff1c67..a5fc676e4 100644
--- a/examples/WireMock.Net.Console.Proxy.NETCoreApp2/WireMock.Net.Console.Proxy.NETCoreApp2.csproj
+++ b/examples/WireMock.Net.Console.Proxy.NETCoreApp2/WireMock.Net.Console.Proxy.NETCoreApp2.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFrameworks>netcoreapp2.1;netcoreapp3.1;net5.0</TargetFrameworks>
     <ApplicationIcon>../../WireMock.Net-Logo.ico</ApplicationIcon>
   </PropertyGroup>
 
diff --git a/src/WireMock.Net/RequestBuilders/Request.cs b/src/WireMock.Net/RequestBuilders/Request.cs
index aeb42be89..184a810b7 100644
--- a/src/WireMock.Net/RequestBuilders/Request.cs
+++ b/src/WireMock.Net/RequestBuilders/Request.cs
@@ -55,6 +55,16 @@ private Request(IList<IRequestMatcher> requestMatchers) : base(requestMatchers)
             return _requestMatchers.OfType<T>().FirstOrDefault();
         }
 
+        /// <summary>
+        /// Gets the request message matcher.
+        /// </summary>
+        /// <typeparam name="T">Type of IRequestMatcher</typeparam>
+        /// <returns>A RequestMatcher</returns>
+        public T GetRequestMessageMatcher<T>(Func<T, bool> func) where T : IRequestMatcher
+        {
+            return _requestMatchers.OfType<T>().FirstOrDefault(func);
+        }
+
         /// <inheritdoc cref="IClientIPRequestBuilder.WithClientIP(IStringMatcher[])"/>
         public IRequestBuilder WithClientIP(params IStringMatcher[] matchers)
         {
diff --git a/test/WireMock.Net.Tests/ResponseBuilders/ResponseWithFaultTests.cs b/test/WireMock.Net.Tests/ResponseBuilders/ResponseWithFaultTests.cs
index 437ae6a60..d4311fedb 100644
--- a/test/WireMock.Net.Tests/ResponseBuilders/ResponseWithFaultTests.cs
+++ b/test/WireMock.Net.Tests/ResponseBuilders/ResponseWithFaultTests.cs
@@ -1,6 +1,5 @@
-using FluentAssertions;
-using Moq;
-using System.Threading.Tasks;
+using System.Threading.Tasks;
+using FluentAssertions;
 using WireMock.Models;
 using WireMock.ResponseBuilders;
 using WireMock.Settings;
diff --git a/test/WireMock.Net.Tests/WireMockServer.Proxy.cs b/test/WireMock.Net.Tests/WireMockServer.Proxy.cs
index 342e17ad5..a07bac254 100644
--- a/test/WireMock.Net.Tests/WireMockServer.Proxy.cs
+++ b/test/WireMock.Net.Tests/WireMockServer.Proxy.cs
@@ -13,6 +13,7 @@
 using WireMock.ResponseBuilders;
 using WireMock.Server;
 using WireMock.Settings;
+using WireMock.Util;
 using Xunit;
 
 namespace WireMock.Net.Tests
@@ -75,8 +76,8 @@ public async Task WireMockServer_Proxy_Should_log_proxied_requests()
             await new HttpClient(httpClientHandler).SendAsync(requestMessage);
 
             // Assert
-            Check.That(server.Mappings).HasSize(2);
-            Check.That(server.LogEntries).HasSize(1);
+            server.Mappings.Should().HaveCount(2);
+            server.LogEntries.Should().HaveCount(1);
         }
 
         [Fact]
@@ -148,10 +149,56 @@ public async Task WireMockServer_Proxy_Should_preserve_content_header_in_proxied
 
             // check that new proxied mapping is added
             Check.That(server.Mappings).HasSize(2);
+        }
+
+        [Fact]
+        public async Task WireMockServer_Proxy_Should_preserve_Authorization_header_in_proxied_request()
+        {
+            // Assign
+            string path = $"/prx_{Guid.NewGuid()}";
+            var serverForProxyForwarding = WireMockServer.Start();
+            serverForProxyForwarding
+                .Given(Request.Create().WithPath(path))
+                .RespondWith(Response.Create().WithCallback(x => new ResponseMessage
+                {
+                    BodyData = new BodyData
+                    {
+                        BodyAsString = x.Headers["Authorization"].ToString(),
+                        DetectedBodyType = Types.BodyType.String
+                    }
+                }));
+
+            var settings = new WireMockServerSettings
+            {
+                ProxyAndRecordSettings = new ProxyAndRecordSettings
+                {
+                    Url = serverForProxyForwarding.Urls[0],
+                    SaveMapping = true,
+                    SaveMappingToFile = false
+                }
+            };
+            var server = WireMockServer.Start(settings);
+
+            // Act
+            var requestMessage = new HttpRequestMessage
+            {
+                Method = HttpMethod.Post,
+                RequestUri = new Uri($"{server.Urls[0]}{path}"),
+                Content = new StringContent("stringContent", Encoding.ASCII)
+            };
+            requestMessage.Headers.Authorization = new AuthenticationHeaderValue("BASIC", "test-A");
+            var result = await new HttpClient().SendAsync(requestMessage);
+
+            // Assert
+            (await result.Content.ReadAsStringAsync()).Should().Be("BASIC test-A");
+
+            var receivedRequest = serverForProxyForwarding.LogEntries.First().RequestMessage;
+            var authorizationHeader = receivedRequest.Headers["Authorization"].ToString().Should().Be("BASIC test-A");
 
-            //var newMapping = _server.Mappings.First(m => m.Guid != guid);
-            //var matcher = ((Request)newMapping.RequestMatcher).GetRequestMessageMatchers<RequestMessageHeaderMatcher>().FirstOrDefault(m => m.Name == "bbb");
-            //Check.That(matcher).IsNotNull();
+            server.Mappings.Should().HaveCount(2);
+            var authorizationRequestMessageHeaderMatcher = ((Request)server.Mappings.Single(m => !m.IsAdminInterface).RequestMatcher)
+                .GetRequestMessageMatcher<RequestMessageHeaderMatcher>(x => x.Matchers.Any(m => m.GetPatterns().Contains("BASIC test-A")));
+            authorizationRequestMessageHeaderMatcher.Should().NotBeNull();
         }
 
         [Fact]