Add CookiePolicy and consent UI

build/dependencies.props

@@ -4,43 +4,44 @@
   </PropertyGroup>
   <PropertyGroup Label="Package Versions">
     <InternalAspNetCoreSdkPackageVersion>2.1.0-preview1-15652</InternalAspNetCoreSdkPackageVersion>
-    <MicrosoftAspNetCoreAllPackageVersion>2.1.0-preview1-27928</MicrosoftAspNetCoreAllPackageVersion>
+    <MicrosoftAspNetCoreAllPackageVersion>2.1.0-preview1-28000</MicrosoftAspNetCoreAllPackageVersion>
-    <MicrosoftAspNetCoreAuthenticationCookiesPackageVersion>2.1.0-preview1-27928</MicrosoftAspNetCoreAuthenticationCookiesPackageVersion>
+    <MicrosoftAspNetCoreAuthenticationCookiesPackageVersion>2.1.0-preview1-28000</MicrosoftAspNetCoreAuthenticationCookiesPackageVersion>
-    <MicrosoftAspNetCoreAuthenticationJwtBearerPackageVersion>2.1.0-preview1-27928</MicrosoftAspNetCoreAuthenticationJwtBearerPackageVersion>
+    <MicrosoftAspNetCoreAuthenticationJwtBearerPackageVersion>2.1.0-preview1-28000</MicrosoftAspNetCoreAuthenticationJwtBearerPackageVersion>
-    <MicrosoftAspNetCoreAuthenticationOpenIdConnectPackageVersion>2.1.0-preview1-27928</MicrosoftAspNetCoreAuthenticationOpenIdConnectPackageVersion>
+    <MicrosoftAspNetCoreAuthenticationOpenIdConnectPackageVersion>2.1.0-preview1-28000</MicrosoftAspNetCoreAuthenticationOpenIdConnectPackageVersion>
-    <MicrosoftAspNetCoreCertificatesGenerationSourcesPackageVersion>2.1.0-preview1-27928</MicrosoftAspNetCoreCertificatesGenerationSourcesPackageVersion>
+    <MicrosoftAspNetCoreCertificatesGenerationSourcesPackageVersion>2.1.0-preview1-28000</MicrosoftAspNetCoreCertificatesGenerationSourcesPackageVersion>
-    <MicrosoftAspNetCoreDiagnosticsEntityFrameworkCorePackageVersion>2.1.0-preview1-27928</MicrosoftAspNetCoreDiagnosticsEntityFrameworkCorePackageVersion>
+    <MicrosoftAspNetCoreCookiePolicyPackageVersion>2.1.0-preview1-28000</MicrosoftAspNetCoreCookiePolicyPackageVersion>
-    <MicrosoftAspNetCoreHttpsPolicyPackageVersion>2.1.0-preview1-27928</MicrosoftAspNetCoreHttpsPolicyPackageVersion>
+    <MicrosoftAspNetCoreDiagnosticsEntityFrameworkCorePackageVersion>2.1.0-preview1-28000</MicrosoftAspNetCoreDiagnosticsEntityFrameworkCorePackageVersion>
-    <MicrosoftAspNetCoreIdentityEntityFrameworkCorePackageVersion>2.1.0-preview1-27928</MicrosoftAspNetCoreIdentityEntityFrameworkCorePackageVersion>
+    <MicrosoftAspNetCoreHttpsPolicyPackageVersion>2.1.0-preview1-28000</MicrosoftAspNetCoreHttpsPolicyPackageVersion>
-    <MicrosoftAspNetCoreIdentityUIPackageVersion>2.1.0-preview1-27928</MicrosoftAspNetCoreIdentityUIPackageVersion>
+    <MicrosoftAspNetCoreIdentityEntityFrameworkCorePackageVersion>2.1.0-preview1-28000</MicrosoftAspNetCoreIdentityEntityFrameworkCorePackageVersion>
-    <MicrosoftAspNetCoreMvcPackageVersion>2.1.0-preview1-27928</MicrosoftAspNetCoreMvcPackageVersion>
+    <MicrosoftAspNetCoreIdentityUIPackageVersion>2.1.0-preview1-28000</MicrosoftAspNetCoreIdentityUIPackageVersion>
-    <MicrosoftAspNetCoreMvcRazorViewCompilationPackageVersion>2.1.0-preview1-27928</MicrosoftAspNetCoreMvcRazorViewCompilationPackageVersion>
+    <MicrosoftAspNetCoreMvcPackageVersion>2.1.0-preview1-28000</MicrosoftAspNetCoreMvcPackageVersion>
-    <MicrosoftAspNetCorePackageVersion>2.1.0-preview1-27928</MicrosoftAspNetCorePackageVersion>
+    <MicrosoftAspNetCoreMvcRazorViewCompilationPackageVersion>2.1.0-preview1-28000</MicrosoftAspNetCoreMvcRazorViewCompilationPackageVersion>
-    <MicrosoftAspNetCoreSpaServicesExtensionsPackageVersion>2.1.0-preview1-27928</MicrosoftAspNetCoreSpaServicesExtensionsPackageVersion>
+    <MicrosoftAspNetCorePackageVersion>2.1.0-preview1-28000</MicrosoftAspNetCorePackageVersion>
-    <MicrosoftAspNetCoreSpaServicesPackageVersion>2.1.0-preview1-27928</MicrosoftAspNetCoreSpaServicesPackageVersion>
+    <MicrosoftAspNetCoreSpaServicesExtensionsPackageVersion>2.1.0-preview1-28000</MicrosoftAspNetCoreSpaServicesExtensionsPackageVersion>
-    <MicrosoftAspNetCoreStaticFilesPackageVersion>2.1.0-preview1-27928</MicrosoftAspNetCoreStaticFilesPackageVersion>
+    <MicrosoftAspNetCoreSpaServicesPackageVersion>2.1.0-preview1-28000</MicrosoftAspNetCoreSpaServicesPackageVersion>
-    <MicrosoftAspNetCoreTestingPackageVersion>2.1.0-preview1-27928</MicrosoftAspNetCoreTestingPackageVersion>
+    <MicrosoftAspNetCoreStaticFilesPackageVersion>2.1.0-preview1-28000</MicrosoftAspNetCoreStaticFilesPackageVersion>
+    <MicrosoftAspNetCoreTestingPackageVersion>2.1.0-preview1-28000</MicrosoftAspNetCoreTestingPackageVersion>
     <MicrosoftBuildFrameworkPackageVersion>15.3.409</MicrosoftBuildFrameworkPackageVersion>
     <MicrosoftBuildUtilitiesCorePackageVersion>15.3.409</MicrosoftBuildUtilitiesCorePackageVersion>
-    <MicrosoftEntityFrameworkCoreDesignPackageVersion>2.1.0-preview1-27928</MicrosoftEntityFrameworkCoreDesignPackageVersion>
+    <MicrosoftEntityFrameworkCoreDesignPackageVersion>2.1.0-preview1-28000</MicrosoftEntityFrameworkCoreDesignPackageVersion>
-    <MicrosoftEntityFrameworkCoreSqlitePackageVersion>2.1.0-preview1-27928</MicrosoftEntityFrameworkCoreSqlitePackageVersion>
+    <MicrosoftEntityFrameworkCoreSqlitePackageVersion>2.1.0-preview1-28000</MicrosoftEntityFrameworkCoreSqlitePackageVersion>
-    <MicrosoftEntityFrameworkCoreSqlServerPackageVersion>2.1.0-preview1-27928</MicrosoftEntityFrameworkCoreSqlServerPackageVersion>
+    <MicrosoftEntityFrameworkCoreSqlServerPackageVersion>2.1.0-preview1-28000</MicrosoftEntityFrameworkCoreSqlServerPackageVersion>
-    <MicrosoftEntityFrameworkCoreToolsDotNetPackageVersion>2.1.0-preview1-27928</MicrosoftEntityFrameworkCoreToolsDotNetPackageVersion>
+    <MicrosoftEntityFrameworkCoreToolsDotNetPackageVersion>2.1.0-preview1-28000</MicrosoftEntityFrameworkCoreToolsDotNetPackageVersion>
-    <MicrosoftEntityFrameworkCoreToolsPackageVersion>2.1.0-preview1-27928</MicrosoftEntityFrameworkCoreToolsPackageVersion>
+    <MicrosoftEntityFrameworkCoreToolsPackageVersion>2.1.0-preview1-28000</MicrosoftEntityFrameworkCoreToolsPackageVersion>
-    <MicrosoftExtensionsCommandLineUtilsSourcesPackageVersion>2.1.0-preview1-27928</MicrosoftExtensionsCommandLineUtilsSourcesPackageVersion>
+    <MicrosoftExtensionsCommandLineUtilsSourcesPackageVersion>2.1.0-preview1-28000</MicrosoftExtensionsCommandLineUtilsSourcesPackageVersion>
-    <MicrosoftExtensionsProcessSourcesPackageVersion>2.1.0-preview1-27928</MicrosoftExtensionsProcessSourcesPackageVersion>
+    <MicrosoftExtensionsProcessSourcesPackageVersion>2.1.0-preview1-28000</MicrosoftExtensionsProcessSourcesPackageVersion>
     <MicrosoftNETCoreApp20PackageVersion>2.0.0</MicrosoftNETCoreApp20PackageVersion>
-    <MicrosoftNETCoreApp21PackageVersion>2.1.0-preview1-26016-05</MicrosoftNETCoreApp21PackageVersion>
+    <MicrosoftNETCoreApp21PackageVersion>2.1.0-preview1-26102-01</MicrosoftNETCoreApp21PackageVersion>
     <MicrosoftNETTestSdkPackageVersion>15.3.0</MicrosoftNETTestSdkPackageVersion>
-    <MicrosoftVisualStudioWebBrowserLinkPackageVersion>2.1.0-preview1-27928</MicrosoftVisualStudioWebBrowserLinkPackageVersion>
+    <MicrosoftVisualStudioWebBrowserLinkPackageVersion>2.1.0-preview1-28000</MicrosoftVisualStudioWebBrowserLinkPackageVersion>
-    <MicrosoftVisualStudioWebCodeGenerationDesignPackageVersion>2.1.0-preview1-27928</MicrosoftVisualStudioWebCodeGenerationDesignPackageVersion>
+    <MicrosoftVisualStudioWebCodeGenerationDesignPackageVersion>2.1.0-preview1-28000</MicrosoftVisualStudioWebCodeGenerationDesignPackageVersion>
-    <MicrosoftVisualStudioWebCodeGenerationToolsPackageVersion>2.1.0-preview1-27928</MicrosoftVisualStudioWebCodeGenerationToolsPackageVersion>
+    <MicrosoftVisualStudioWebCodeGenerationToolsPackageVersion>2.1.0-preview1-28000</MicrosoftVisualStudioWebCodeGenerationToolsPackageVersion>
     <NETStandardLibraryPackageVersion>2.0.0</NETStandardLibraryPackageVersion>
     <SeleniumFirefoxWebDriverPackageVersion>0.19.0</SeleniumFirefoxWebDriverPackageVersion>
     <SeleniumSupportPackageVersion>3.7.0</SeleniumSupportPackageVersion>
     <SeleniumWebDriverMicrosoftDriverPackageVersion>16.16299.0</SeleniumWebDriverMicrosoftDriverPackageVersion>
     <SeleniumWebDriverPackageVersion>3.7.0</SeleniumWebDriverPackageVersion>
-    <SystemSecurityPermissionsPackageVersion>4.5.0-preview1-26016-05</SystemSecurityPermissionsPackageVersion>
+    <SystemSecurityPermissionsPackageVersion>4.5.0-preview1-26102-01</SystemSecurityPermissionsPackageVersion>
     <XunitAnalyzersPackageVersion>0.8.0</XunitAnalyzersPackageVersion>
     <XunitPackageVersion>2.3.1</XunitPackageVersion>
     <XunitRunnerVisualStudioPackageVersion>2.3.1</XunitRunnerVisualStudioPackageVersion>

src/Microsoft.DotNet.Web.ProjectTemplates/Microsoft.DotNet.Web.ProjectTemplates.csproj

@@ -17,6 +17,7 @@
       MicrosoftAspNetCoreAuthenticationCookiesPackageVersion=$(MicrosoftAspNetCoreAuthenticationCookiesPackageVersion);
       MicrosoftAspNetCoreAuthenticationJwtBearerPackageVersion=$(MicrosoftAspNetCoreAuthenticationJwtBearerPackageVersion);
       MicrosoftAspNetCoreAuthenticationOpenIdConnectPackageVersion=$(MicrosoftAspNetCoreAuthenticationOpenIdConnectPackageVersion);
+      MicrosoftAspNetCoreCookiePolicyPackageVersion=$(MicrosoftAspNetCoreCookiePolicyPackageVersion);
       MicrosoftAspNetCoreDiagnosticsEntityFrameworkCorePackageVersion=$(MicrosoftAspNetCoreDiagnosticsEntityFrameworkCorePackageVersion);
       MicrosoftAspNetCoreHttpsPolicyPackageVersion=$(MicrosoftAspNetCoreHttpsPolicyPackageVersion);
       MicrosoftAspNetCoreIdentityEntityFrameworkCorePackageVersion=$(MicrosoftAspNetCoreIdentityEntityFrameworkCorePackageVersion);

src/Microsoft.DotNet.Web.ProjectTemplates/RazorPagesWeb-CSharp.csproj.in

@@ -25,6 +25,7 @@
     <PackageReference Include="Microsoft.AspNetCore.Authentication.Cookies" Version="${MicrosoftAspNetCoreAuthenticationCookiesPackageVersion}" Condition="'$(IndividualAuth)' == 'True' OR '$(OrganizationalAuth)' == 'True'" />
     <PackageReference Include="Microsoft.AspNetCore.Authentication.OpenIdConnect" Version="${MicrosoftAspNetCoreAuthenticationOpenIdConnectPackageVersion}" Condition="'$(OrganizationalAuth)' == 'True' OR '$(IndividualB2CAuth)' == 'True'" />
     <PackageReference Include="Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore" Version="${MicrosoftAspNetCoreDiagnosticsEntityFrameworkCorePackageVersion}" Condition="'$(IndividualLocalAuth)' == 'True'" />
+    <PackageReference Include="Microsoft.AspNetCore.CookiePolicy" Version="${MicrosoftAspNetCoreCookiePolicyPackageVersion}" />
     <PackageReference Include="Microsoft.AspNetCore.HttpsPolicy" Version="${MicrosoftAspNetCoreHttpsPolicyPackageVersion}" />
     <PackageReference Include="Microsoft.AspNetCore.Identity.EntityFrameworkCore" Version="${MicrosoftAspNetCoreIdentityEntityFrameworkCorePackageVersion}" Condition="'$(IndividualLocalAuth)' == 'True'" />
     <PackageReference Include="Microsoft.AspNetCore.Identity.UI" Version="${MicrosoftAspNetCoreIdentityEntityFrameworkCorePackageVersion}" Condition="'$(IndividualLocalAuth)' == 'True'" />

src/Microsoft.DotNet.Web.ProjectTemplates/StarterWeb-CSharp.csproj.in

@@ -25,6 +25,7 @@
     <PackageReference Include="Microsoft.AspNetCore" Version="${MicrosoftAspNetCorePackageVersion}" />
     <PackageReference Include="Microsoft.AspNetCore.Authentication.Cookies" Version="${MicrosoftAspNetCoreAuthenticationCookiesPackageVersion}" Condition="'$(IndividualAuth)' == 'True' OR '$(OrganizationalAuth)' == 'True'" />
     <PackageReference Include="Microsoft.AspNetCore.Authentication.OpenIdConnect" Version="${MicrosoftAspNetCoreAuthenticationOpenIdConnectPackageVersion}" Condition="'$(OrganizationalAuth)' == 'True' OR '$(IndividualB2CAuth)' == 'True'" />
+    <PackageReference Include="Microsoft.AspNetCore.CookiePolicy" Version="${MicrosoftAspNetCoreCookiePolicyPackageVersion}" />
     <PackageReference Include="Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore" Version="${MicrosoftAspNetCoreDiagnosticsEntityFrameworkCorePackageVersion}" Condition="'$(IndividualLocalAuth)' == 'True'" />
     <PackageReference Include="Microsoft.AspNetCore.HttpsPolicy" Version="${MicrosoftAspNetCoreHttpsPolicyPackageVersion}" />
     <PackageReference Include="Microsoft.AspNetCore.Identity.UI" Version="${MicrosoftAspNetCoreIdentityEntityFrameworkCorePackageVersion}" Condition="'$(IndividualLocalAuth)' == 'True'" />

src/Microsoft.DotNet.Web.ProjectTemplates/StarterWeb-FSharp.fsproj.in

@@ -20,6 +20,7 @@
   </ItemGroup>
   <ItemGroup Condition="'$(TargetFrameworkOverride)' != ''">
     <PackageReference Include="Microsoft.AspNetCore" Version="${MicrosoftAspNetCorePackageVersion}" />
+    <PackageReference Include="Microsoft.AspNetCore.CookiePolicy" Version="${MicrosoftAspNetCoreCookiePolicyPackageVersion}" />
     <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="${MicrosoftAspNetCoreMvcPackageVersion}" />
     <PackageReference Include="Microsoft.AspNetCore.Mvc.Razor.ViewCompilation" Version="${MicrosoftAspNetCoreMvcRazorViewCompilationPackageVersion}" PrivateAssets="All" />
     <PackageReference Include="Microsoft.AspNetCore.StaticFiles" Version="${MicrosoftAspNetCoreStaticFilesPackageVersion}" />

src/Microsoft.DotNet.Web.ProjectTemplates/content/RazorPagesWeb-CSharp/Pages/Privacy.cshtml

@@ -0,0 +1,8 @@
+@page
+@model PrivacyModel
+@{
+    ViewData["Title"] = "Privacy Policy";
+}
+<h2>@ViewData["Title"]</h2>
+
+<p>Use this page to detail your site's privacy policy.</p>

src/Microsoft.DotNet.Web.ProjectTemplates/content/RazorPagesWeb-CSharp/Pages/Privacy.cshtml.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+
+namespace Company.WebApplication1.Pages
+{
+    public class PrivacyModel : PageModel
+    {
+        public void OnGet()
+        {
+        }
+    }
+}

src/Microsoft.DotNet.Web.ProjectTemplates/content/RazorPagesWeb-CSharp/Pages/_CookieConsentPartial.cshtml

@@ -0,0 +1,41 @@
+@using Microsoft.AspNetCore.Http.Features
+
+@{
+    var consentFeature = Context.Features.Get<ITrackingConsentFeature>();
+    var showBanner = !consentFeature?.CanTrack ?? false;
+    var cookieString = consentFeature?.CreateConsentCookie();
+}
+
+@if (showBanner)
+{
+    <nav id="cookieConsent" class="navbar navbar-default navbar-fixed-top" role="alert">
+        <div class="container">
+            <div class="navbar-header">
+                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#cookieConsent .navbar-collapse">
+                    <span class="sr-only">Toggle cookie consent banner</span>
+                    <span class="icon-bar"></span>
+                    <span class="icon-bar"></span>
+                    <span class="icon-bar"></span>
+                </button>
+                <span class="navbar-brand"><span class="glyphicon glyphicon-info-sign" aria-hidden="true"></span></span>
+            </div>
+            <div class="collapse navbar-collapse">
+                <p class="navbar-text">
+                    Use this space to summarize your privacy and cookie use policy.
+                </p>
+                <div class="navbar-right">
+                    <a asp-page="/Privacy" class="btn btn-info navbar-btn">Learn More</a>
+                    <button type="button" class="btn btn-default navbar-btn" data-cookie-string="@cookieString">Accept</button>
+                </div>
+            </div>
+        </div>
+    </nav>
+    <script>
+        (function () {
+            document.querySelector("#cookieConsent button[data-cookie-string]").addEventListener("click", function (el) {
+                document.cookie = el.target.dataset.cookieString;
+                document.querySelector("#cookieConsent").classList.add("hidden");
+            }, false);
+        })();
+    </script>
+}

src/Microsoft.DotNet.Web.ProjectTemplates/content/RazorPagesWeb-CSharp/Pages/_Layout.cshtml

@@ -42,6 +42,9 @@
             </div>
         </div>
     </nav>
+
+    <partial name="_CookieConsentPartial" />
+
     <div class="container body-content">
         @RenderBody()
         <hr />

src/Microsoft.DotNet.Web.ProjectTemplates/content/RazorPagesWeb-CSharp/Startup.cs

@@ -49,6 +49,12 @@ namespace Company.WebApplication1
         // This method gets called by the runtime. Use this method to add services to the container.
         public void ConfigureServices(IServiceCollection services)
         {
+            services.Configure<CookiePolicyOptions>(options =>
+            {
+                // This lambda determines whether user consent for non-essential cookies is needed for a given request.
+                options.CheckConsentNeeded = context => true;
+            });
+
 #if (IndividualLocalAuth)
             services.AddDbContext<IdentityDbContext>(options =>
     #if (UseLocalDB)
@@ -127,6 +133,7 @@ namespace Company.WebApplication1
 
             app.UseHttpsRedirection();
             app.UseStaticFiles();
+            app.UseCookiePolicy();
 
 #if (OrganizationalAuth || IndividualAuth)
             app.UseAuthentication();

src/Microsoft.DotNet.Web.ProjectTemplates/content/StarterWeb-CSharp/Controllers/HomeController.cs

@@ -35,6 +35,11 @@ namespace Company.WebApplication1.Controllers
             return View();
         }
 
+        public IActionResult Privacy()
+        {
+            return View();
+        }
+
 #if (OrganizationalAuth)
         [AllowAnonymous]
 #endif

src/Microsoft.DotNet.Web.ProjectTemplates/content/StarterWeb-CSharp/Startup.cs

@@ -72,6 +72,12 @@ namespace Company.WebApplication1
             .AddCookie();
 
 #endif
+            services.Configure<CookiePolicyOptions>(options =>
+            {
+                // This lambda determines whether user consent for non-essential cookies is needed for a given request.
+                options.CheckConsentNeeded = context => true;
+            });
+
             services.AddMvc();
         }
 
@@ -96,6 +102,7 @@ namespace Company.WebApplication1
 
             app.UseHttpsRedirection();
             app.UseStaticFiles();
+            app.UseCookiePolicy();
 
 #if (OrganizationalAuth || IndividualAuth)
             app.UseAuthentication();

src/Microsoft.DotNet.Web.ProjectTemplates/content/StarterWeb-CSharp/Views/Home/Privacy.cshtml

@@ -0,0 +1,6 @@
+@{
+    ViewData["Title"] = "Privacy Policy";
+}
+<h2>@ViewData["Title"]</h2>
+
+<p>Use this page to detail your site's privacy policy.</p>

src/Microsoft.DotNet.Web.ProjectTemplates/content/StarterWeb-CSharp/Views/Shared/_CookieConsentPartial.cshtml

@@ -0,0 +1,41 @@
+@using Microsoft.AspNetCore.Http.Features
+
+@{
+    var consentFeature = Context.Features.Get<ITrackingConsentFeature>();
+    var showBanner = !consentFeature?.CanTrack ?? false;
+    var cookieString = consentFeature?.CreateConsentCookie();
+}
+
+@if (showBanner)
+{
+    <nav id="cookieConsent" class="navbar navbar-default navbar-fixed-top" role="alert">
+        <div class="container">
+            <div class="navbar-header">
+                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#cookieConsent .navbar-collapse">
+                    <span class="sr-only">Toggle cookie consent banner</span>
+                    <span class="icon-bar"></span>
+                    <span class="icon-bar"></span>
+                    <span class="icon-bar"></span>
+                </button>
+                <span class="navbar-brand"><span class="glyphicon glyphicon-info-sign" aria-hidden="true"></span></span>
+            </div>
+            <div class="collapse navbar-collapse">
+                <p class="navbar-text">
+                    Use this space to summarize your privacy and cookie use policy.
+                </p>
+                <div class="navbar-right">
+                    <a asp-controller="Home" asp-action="Privacy" class="btn btn-info navbar-btn">Learn More</a>
+                    <button type="button" class="btn btn-default navbar-btn" data-cookie-string="@cookieString">Accept</button>
+                </div>
+            </div>
+        </div>
+    </nav>
+    <script>
+        (function () {
+            document.querySelector("#cookieConsent button[data-cookie-string]").addEventListener("click", function (el) {
+                document.cookie = el.target.dataset.cookieString;
+                document.querySelector("#cookieConsent").classList.add("hidden");
+            }, false);
+        })();
+    </script>
+}

src/Microsoft.DotNet.Web.ProjectTemplates/content/StarterWeb-CSharp/Views/Shared/_Layout.cshtml

@@ -42,6 +42,9 @@
             </div>
         </div>
     </nav>
+
+    <partial name="_CookieConsentPartial" />
+
     <div class="container body-content">
         @RenderBody()
         <hr />