diff --git a/src/CacheCow.Client.RedisCacheStore/CacheCow.Client.RedisCacheStore.csproj b/src/CacheCow.Client.RedisCacheStore/CacheCow.Client.RedisCacheStore.csproj
index 74d54247..a8300842 100644
--- a/src/CacheCow.Client.RedisCacheStore/CacheCow.Client.RedisCacheStore.csproj
+++ b/src/CacheCow.Client.RedisCacheStore/CacheCow.Client.RedisCacheStore.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 	<PropertyGroup>
-		<TargetFrameworks>netstandard2.0;net461</TargetFrameworks>
-		<TargetFrameworks Condition="'$(OS)' != 'Windows_NT'">netstandard2.0</TargetFrameworks>		
+		<TargetFrameworks>netstandard2.0;net461;net5.0</TargetFrameworks>
+		<TargetFrameworks Condition="'$(OS)' != 'Windows_NT'">netstandard2.0;net5.0</TargetFrameworks>		
 		<Summary>Redis Storage for HTTP Client Caching</Summary>
 		<AssemblyName>CacheCow.Client.RedisCacheStore</AssemblyName>
 		<PackageId>CacheCow.Client.RedisCacheStore</PackageId>
@@ -9,7 +9,7 @@
 	<ItemGroup>
 		<PackageReference Include="Newtonsoft.Json" Version="11.0.1" />
 		<PackageReference Include="Microsoft.AspNet.WebApi.Client" Version="5.2.5" />
-		<PackageReference Include="StackExchange.Redis" Version="2.0.601" />		
+		<PackageReference Include="StackExchange.Redis" Version="2.2.88" />		
 	</ItemGroup>
 	<ItemGroup>
 		<ProjectReference Include="..\CacheCow.Client\CacheCow.Client.csproj" />
diff --git a/src/CacheCow.Client/CacheCow.Client.csproj b/src/CacheCow.Client/CacheCow.Client.csproj
index e70ac292..63019d6b 100644
--- a/src/CacheCow.Client/CacheCow.Client.csproj
+++ b/src/CacheCow.Client/CacheCow.Client.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 	<PropertyGroup>
-		<TargetFrameworks>netstandard2.0;net452</TargetFrameworks>
-		<TargetFrameworks Condition="'$(OS)' != 'Windows_NT'">netstandard2.0</TargetFrameworks>		
+		<TargetFrameworks>netstandard2.0;net452;net5.0</TargetFrameworks>
+		<TargetFrameworks Condition="'$(OS)' != 'Windows_NT'">netstandard2.0;net5.0</TargetFrameworks>		
 		<Summary>Client constructs for HTTP Caching</Summary>
 		<AssemblyName>CacheCow.Client</AssemblyName>
 		<PackageId>CacheCow.Client</PackageId>
@@ -18,8 +18,11 @@
 	</ItemGroup>
 	<ItemGroup Condition=" '$(TargetFramework)' == 'net452' ">
 		<Reference Include="System.Runtime.Caching" />
-	</ItemGroup>	
-	<ItemGroup Condition=" '$(TargetFramework)' == 'netstandard2.0'">
-		<PackageReference Include="Microsoft.Extensions.Caching.Memory" Version="2.0.1" />
-	</ItemGroup>	
+	</ItemGroup>
+    <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard2.0'">
+        <PackageReference Include="Microsoft.Extensions.Caching.Memory" Version="2.0.1" />
+    </ItemGroup>
+    <ItemGroup Condition=" '$(TargetFramework)' == 'net5.0'">
+        <PackageReference Include="Microsoft.Extensions.Caching.Memory" Version="5.0.0" />
+    </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/src/CacheCow.Common/CacheCow.Common.csproj b/src/CacheCow.Common/CacheCow.Common.csproj
index 38d2005b..7302a906 100644
--- a/src/CacheCow.Common/CacheCow.Common.csproj
+++ b/src/CacheCow.Common/CacheCow.Common.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 	<PropertyGroup>
-		<TargetFrameworks>netstandard2.0;net452</TargetFrameworks>
-		<TargetFrameworks Condition="'$(OS)' != 'Windows_NT'">netstandard2.0</TargetFrameworks>
+		<TargetFrameworks>netstandard2.0;net452;net5.0</TargetFrameworks>
+		<TargetFrameworks Condition="'$(OS)' != 'Windows_NT'">netstandard2.0;net5.0</TargetFrameworks>
 		<Summary>Common constructs for HTTP Caching</Summary>
 		<AssemblyName>CacheCow.Common</AssemblyName>
 		<PackageId>CacheCow.Common</PackageId>
diff --git a/src/CacheCow.Server.Core.Mvc/CacheCow.Server.Core.Mvc.csproj b/src/CacheCow.Server.Core.Mvc/CacheCow.Server.Core.Mvc.csproj
index 9df792b4..5c635b94 100644
--- a/src/CacheCow.Server.Core.Mvc/CacheCow.Server.Core.Mvc.csproj
+++ b/src/CacheCow.Server.Core.Mvc/CacheCow.Server.Core.Mvc.csproj
@@ -1,17 +1,22 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
 	<PropertyGroup>
-		<TargetFrameworks>netstandard2.0</TargetFrameworks>
+		<TargetFrameworks>netstandard2.0;net5.0</TargetFrameworks>
 		<Summary>Server constructs for HTTP Caching in ASP.NET Core MVC</Summary>
 		<AssemblyName>CacheCow.Server.Core.Mvc</AssemblyName>
 		<PackageId>CacheCow.Server.Core.Mvc</PackageId>
 	</PropertyGroup>
 
-	<ItemGroup>
+	<ItemGroup Condition=" '$(TargetFramework)' == 'netstandard2.0' ">
         <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="2.0.3" />
         <PackageReference Include="microsoft.extensions.configuration.binder" Version="2.0.2" />
 		<PackageReference Include="Microsoft.AspNet.WebApi.Client" Version="5.2.5" />		
 	</ItemGroup>
+    <ItemGroup Condition=" '$(TargetFramework)' == 'net5.0' ">
+        <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="2.2.0" />
+        <PackageReference Include="microsoft.extensions.configuration.binder" Version="5.0.0" />
+        <PackageReference Include="Microsoft.AspNet.WebApi.Client" Version="5.2.7" />
+    </ItemGroup>
 	
   <ItemGroup>
     <ProjectReference Include="..\CacheCow.Common\CacheCow.Common.csproj" />
diff --git a/src/CacheCow.Server/CacheCow.Server.csproj b/src/CacheCow.Server/CacheCow.Server.csproj
index 69c2015a..f004024e 100644
--- a/src/CacheCow.Server/CacheCow.Server.csproj
+++ b/src/CacheCow.Server/CacheCow.Server.csproj
@@ -1,8 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
 	<PropertyGroup>
-		<TargetFrameworks>netstandard2.0;net452</TargetFrameworks>
-		<TargetFrameworks Condition="'$(OS)' != 'Windows_NT'">netstandard2.0</TargetFrameworks>		
+		<TargetFrameworks>netstandard2.0;net452;net5.0</TargetFrameworks>
+		<TargetFrameworks Condition="'$(OS)' != 'Windows_NT'">netstandard2.0;net5.0</TargetFrameworks>		
 		<Summary>Server constructs for HTTP Caching</Summary>
 		<AssemblyName>CacheCow.Server</AssemblyName>
 		<PackageId>CacheCow.Server</PackageId>
@@ -11,17 +11,22 @@
 	  <Compile Include="..\Common\TraceWriter.cs" Link="TraceWriter.cs" />
 	</ItemGroup>
 	<ItemGroup>
-		<PackageReference Include="Newtonsoft.Json" Version="11.0.1" />
 		<PackageReference Include="Microsoft.AspNet.WebApi.Client" Version="5.2.5" />
 	</ItemGroup>
 	<ItemGroup>
 		<ProjectReference Include="..\CacheCow.Common\CacheCow.Common.csproj" />
 	</ItemGroup>
 	<ItemGroup Condition=" '$(TargetFramework)' == 'net452' ">
+        <PackageReference Include="Newtonsoft.Json" Version="11.0.1" />
 		<PackageReference Include="Microsoft.AspNet.WebApi.Core" Version="5.2.5" />
 	</ItemGroup>		
-	<ItemGroup Condition=" '$(TargetFramework)' == 'netstandard2.0' Or '$(TargetFramework)' == 'netcoreapp2.0' ">
+	<ItemGroup Condition=" '$(TargetFramework)' == 'netstandard2.0'">
 		<PackageReference Include="Microsoft.AspNetCore.Mvc" Version="2.0.3" />
-	</ItemGroup>	
+        <PackageReference Include="Newtonsoft.Json" Version="11.0.1" />
+	</ItemGroup>
+    <ItemGroup Condition=" '$(TargetFramework)' == 'net5.0' ">
+        <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="2.2.0" />
+        <PackageReference Include="Newtonsoft.Json" Version="11.0.2" />
+    </ItemGroup>
 
 </Project>
diff --git a/test/CacheCow.Client.RedisCacheStore.Tests/CacheCow.Client.RedisCacheStore.Tests.csproj b/test/CacheCow.Client.RedisCacheStore.Tests/CacheCow.Client.RedisCacheStore.Tests.csproj
index ec468f58..ed3e147d 100644
--- a/test/CacheCow.Client.RedisCacheStore.Tests/CacheCow.Client.RedisCacheStore.Tests.csproj
+++ b/test/CacheCow.Client.RedisCacheStore.Tests/CacheCow.Client.RedisCacheStore.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 	<PropertyGroup>
-		<TargetFrameworks>netcoreapp2.0;net461;netcoreapp3.0</TargetFrameworks>
-		<TargetFrameworks Condition="'$(OS)' != 'Windows_NT'">netcoreapp2.0;netcoreapp3.0</TargetFrameworks>		
+		<TargetFrameworks>netcoreapp2.1;net461;netcoreapp3.0;net5.0</TargetFrameworks>
+		<TargetFrameworks Condition="'$(OS)' != 'Windows_NT'">netcoreapp2.1;netcoreapp3.0;net5.0</TargetFrameworks>		
 		<Summary>Client constructs for HTTP Caching</Summary>
 		<AssemblyName>CacheCow.Client.RedisCacheStore.Tests</AssemblyName>
 		<PackageId>CacheCow.Client.RedisCacheStore.Tests</PackageId>
diff --git a/test/CacheCow.Client.Tests/CacheCow.Client.Tests.csproj b/test/CacheCow.Client.Tests/CacheCow.Client.Tests.csproj
index 6c905205..60e4f3b5 100644
--- a/test/CacheCow.Client.Tests/CacheCow.Client.Tests.csproj
+++ b/test/CacheCow.Client.Tests/CacheCow.Client.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 	<PropertyGroup>
-		<TargetFrameworks>net452;netcoreapp2.0;netcoreapp2.1;netcoreapp3.0</TargetFrameworks>
-		<TargetFrameworks Condition="'$(OS)' != 'Windows_NT'">netcoreapp2.0;netcoreapp3.0</TargetFrameworks>		
+		<TargetFrameworks>net452;netcoreapp2.0;netcoreapp2.1;netcoreapp3.0;net5.0</TargetFrameworks>
+		<TargetFrameworks Condition="'$(OS)' != 'Windows_NT'">netcoreapp2.0;netcoreapp3.0;net5.0</TargetFrameworks>		
 		<Summary>Client constructs for HTTP Caching</Summary>
 		<AssemblyName>CacheCow.Client.Tests</AssemblyName>
 		<PackageId>CacheCow.Client.Tests</PackageId>
@@ -21,7 +21,7 @@
 	</ItemGroup>
 	<ItemGroup>
 		<PackageReference Include="Newtonsoft.Json" Version="11.0.1" />
-		<PackageReference Include="Microsoft.AspNet.WebApi.Client" Version="5.2.5" />
+		<PackageReference Include="Microsoft.AspNet.WebApi.Client" Version="5.2.7" />
 		<PackageReference Include="xunit" Version="2.3.1" />
 		<PackageReference Include="xunit.runner.visualstudio" Version="2.3.1" />
 		<PackageReference Include="Moq" Version="4.8.2" />
diff --git a/test/CacheCow.Client.Tests/Helper/DeepComparer.cs b/test/CacheCow.Client.Tests/Helper/DeepComparer.cs
index 56ba0da5..2dd3a74f 100644
--- a/test/CacheCow.Client.Tests/Helper/DeepComparer.cs
+++ b/test/CacheCow.Client.Tests/Helper/DeepComparer.cs
@@ -75,8 +75,13 @@ private static void RecursiveCompare(string name, object a, object b, List<strin
 				propCount++;
 			}
 
-			if (propCount == 0)
-				errors.AddError(name, a, b);
+            if (name == ".Properties" || name == ".Options") // this is rubbish
+                return;
+
+            if (propCount == 0)
+            {
+                errors.AddError(name, a, b);
+            }
 
 		}
 
diff --git a/test/CacheCow.Client.Tests/IntegrationTests.cs b/test/CacheCow.Client.Tests/IntegrationTests.cs
index a3b2663a..3506d2ca 100644
--- a/test/CacheCow.Client.Tests/IntegrationTests.cs
+++ b/test/CacheCow.Client.Tests/IntegrationTests.cs
@@ -27,6 +27,17 @@ public async Task Test_GoogleImage_WorksOnFirstSecondRequestNotThird()
 			Assert.Equal(true, cacheCowHeader.RetrievedFromCache);
 		}
 
+        [Fact]
+        public async Task Simple_Caching_Example_From_Issue263()
+        {
+            var client = ClientExtensions.CreateClient();
+            const string CacheableResource = "https://code.jquery.com/jquery-3.3.1.slim.min.js";
+            var response = await client.GetAsync(CacheableResource);
+            var responseFromCache = await client.GetAsync(CacheableResource);
+            Assert.Equal(true, response.Headers.GetCacheCowHeader().DidNotExist);
+            Assert.Equal(true, responseFromCache.Headers.GetCacheCowHeader().RetrievedFromCache);
+        }
+
         [Fact]
         public async Task SettingNoHeaderWorks()
         {
diff --git a/test/CacheCow.Server.Core.Mvc.Tests/CacheCow.Server.Core.Mvc.Tests.csproj b/test/CacheCow.Server.Core.Mvc.Tests/CacheCow.Server.Core.Mvc.Tests.csproj
index 69448c55..d81c3a38 100644
--- a/test/CacheCow.Server.Core.Mvc.Tests/CacheCow.Server.Core.Mvc.Tests.csproj
+++ b/test/CacheCow.Server.Core.Mvc.Tests/CacheCow.Server.Core.Mvc.Tests.csproj
@@ -1,17 +1,21 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp3.1</TargetFrameworks>
+    <TargetFrameworks>netcoreapp3.1;net5.0</TargetFrameworks>
     <ApplicationIcon />
     <OutputType>Library</OutputType>
     <StartupObject />
   </PropertyGroup>
-	<ItemGroup>
+    <ItemGroup Condition=" '$(TargetFramework)' == 'net5.0' ">
+        <FrameworkReference Include="Microsoft.AspNetCore.App" />
+    </ItemGroup>
+    
+    <ItemGroup Condition=" '$(TargetFramework)' == 'netcoreapp3.1' ">
         <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="3.1.0" />
         <PackageReference Include="microsoft.extensions.configuration.json" Version="3.1.0" />
 		<PackageReference Include="Microsoft.Extensions.Options.ConfigurationExtensions" Version="3.1.0" />
 		<PackageReference Include="Newtonsoft.Json" Version="11.0.2" />
-		<PackageReference Include="Microsoft.AspNet.WebApi.Client" Version="5.2.5" />
+		<PackageReference Include="Microsoft.AspNet.WebApi.Client" Version="5.2.7" />
 		<PackageReference Include="xunit" Version="2.3.1" />
 		<PackageReference Include="xunit.runner.visualstudio" Version="2.3.1" />
 		<PackageReference Include="Moq" Version="4.8.2" />
@@ -22,6 +26,13 @@
         <PackageReference Include="Microsoft.AspNetCore.Hosting" Version="2.2.0" />
 		<PackageReference Include="Microsoft.AspNetCore.TestHost" Version="2.2.0" />
 	</ItemGroup>
+    <ItemGroup Condition=" '$(TargetFramework)' == 'net5.0' ">
+        <PackageReference Include="xunit" Version="2.3.1" />
+        <PackageReference Include="xunit.runner.visualstudio" Version="2.3.1" />
+        <PackageReference Include="Moq" Version="4.8.2" />
+        <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="5.0.12" />
+    </ItemGroup>
+
 	<ItemGroup>
 	  <ProjectReference Include="..\..\src\CacheCow.Client\CacheCow.Client.csproj" />
 	  <ProjectReference Include="..\..\src\CacheCow.Common\CacheCow.Common.csproj" />
diff --git a/test/CacheCow.Server.Core.Mvc.Tests/SimpleNoCacheHttpCacheFilterTests.cs b/test/CacheCow.Server.Core.Mvc.Tests/SimpleNoCacheHttpCacheFilterTests.cs
index 18fa3e88..4291c74d 100644
--- a/test/CacheCow.Server.Core.Mvc.Tests/SimpleNoCacheHttpCacheFilterTests.cs
+++ b/test/CacheCow.Server.Core.Mvc.Tests/SimpleNoCacheHttpCacheFilterTests.cs
@@ -98,7 +98,10 @@ public HttpCacheFilterTestsStartup(IConfiguration configuration)
         // This method gets called by the runtime. Use this method to add services to the container.
         public virtual void ConfigureServices(IServiceCollection services)
         {
-            services.AddMvc();
+            services.AddMvc(options =>
+            {
+                options.EnableEndpointRouting = false;
+            });
             services.AddHttpCachingMvc(options =>
             {
                 options.EnableConfiguration = true;
diff --git a/test/CacheCow.Server.Core.Mvc.Tests/WithCustomExtractorTests.cs b/test/CacheCow.Server.Core.Mvc.Tests/WithCustomExtractorTests.cs
index 67885530..635f1fae 100644
--- a/test/CacheCow.Server.Core.Mvc.Tests/WithCustomExtractorTests.cs
+++ b/test/CacheCow.Server.Core.Mvc.Tests/WithCustomExtractorTests.cs
@@ -68,7 +68,10 @@ public class WithCustomExtractorStartup : WithQueryProviderStartup
         // This method gets called by the runtime. Use this method to add services to the container.
         public override void ConfigureServices(IServiceCollection services)
         {
-            services.AddMvc();
+            services.AddMvc(options =>
+            {
+                options.EnableEndpointRouting = false;
+            });
             services.AddHttpCachingMvc();
             services.AddExtractorForViewModelMvc<IEnumerable<TestViewModel>, TestViewModelCollectionExtractor>();
         }
diff --git a/test/CacheCow.Server.Core.Mvc.Tests/WithQueryProviderTests.cs b/test/CacheCow.Server.Core.Mvc.Tests/WithQueryProviderTests.cs
index c08998e3..8d443edd 100644
--- a/test/CacheCow.Server.Core.Mvc.Tests/WithQueryProviderTests.cs
+++ b/test/CacheCow.Server.Core.Mvc.Tests/WithQueryProviderTests.cs
@@ -155,7 +155,10 @@ public class WithQueryProviderStartup
         // This method gets called by the runtime. Use this method to add services to the container.
         public virtual void ConfigureServices(IServiceCollection services)
         {
-            services.AddMvc();
+            services.AddMvc(options =>
+            {
+                options.EnableEndpointRouting = false;
+            });
             services.AddHttpCachingMvc();
             services.AddQueryProviderForViewModelMvc<TestViewModel, TestViewModelQueryProvider>();
             services.AddQueryProviderForViewModelMvc<IEnumerable<TestViewModel>, TestViewModelCollectionQueryProvider>();
@@ -208,7 +211,10 @@ public class WithQueryProviderStartupWithNoHeaderOptions : WithQueryProviderStar
         public override void ConfigureServices(IServiceCollection services)
         {
             services.AddOptions();
-            services.AddMvc();
+            services.AddMvc(options =>
+            {
+                options.EnableEndpointRouting = false;
+            });
             services.AddHttpCachingMvc(options => options.DoNotEmitCacheCowHeader = true);
             services.AddQueryProviderForViewModelMvc<TestViewModel, TestViewModelQueryProvider>();
             services.AddQueryProviderForViewModelMvc<IEnumerable<TestViewModel>, TestViewModelCollectionQueryProvider>();
diff --git a/test/CacheCow.Tests/CacheCow.Tests.csproj b/test/CacheCow.Tests/CacheCow.Tests.csproj
index d8c8e705..400ecee4 100644
--- a/test/CacheCow.Tests/CacheCow.Tests.csproj
+++ b/test/CacheCow.Tests/CacheCow.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 	<PropertyGroup>
-		<TargetFrameworks>netcoreapp3.0;netcoreapp2.0;net452</TargetFrameworks>
-		<TargetFrameworks Condition="'$(OS)' != 'Windows_NT'">netcoreapp2.0;netcoreapp3.0</TargetFrameworks>		
+		<TargetFrameworks>netcoreapp3.0;netcoreapp2.0;net452;net5.0</TargetFrameworks>
+		<TargetFrameworks Condition="'$(OS)' != 'Windows_NT'">netcoreapp2.0;netcoreapp3.0;net5.0</TargetFrameworks>		
 		<Summary>Client constructs for HTTP Caching</Summary>
 		<AssemblyName>CacheCow.Tests</AssemblyName>
 		<PackageId>CacheCow.Tests</PackageId>