Prevent VS warning for empty attribute (#16719)

Author: ryanbrandenburg

src/Components/Blazor/Templates/src/content/BlazorWasm-CSharp/Client/wwwroot/index.html

@@ -15,7 +15,7 @@
 
     <div id="blazor-error-ui">
         An unhandled error has occurred.
-        <a href class="reload">Reload</a>
+        <a href="" class="reload">Reload</a>
         <a class="dismiss">🗙</a>
     </div>
     <script src="_framework/blazor.webassembly.js"></script>

src/ProjectTemplates/Web.ProjectTemplates/content/BlazorServerWeb-CSharp/Pages/_Host.cshtml

@@ -1,7 +1,7 @@
 @page "/"
 @namespace BlazorServerWeb_CSharp.Pages
 @addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
-@{ 
+@{
     Layout = null;
 }
 
@@ -27,7 +27,7 @@
         <environment include="Development">
             An unhandled exception has occurred. See browser dev tools for details.
         </environment>
-        <a href class="reload">Reload</a>
+        <a href="" class="reload">Reload</a>
         <a class="dismiss">🗙</a>
     </div>
 

src/ProjectTemplates/scripts/.gitignore

@@ -3,6 +3,7 @@ tmp/
 CustomHive/
 angular/
 blazorserver/
+blazorwasm/
 mvc/
 razor/
 react/

src/ProjectTemplates/scripts/Run-BlazorWasm-Locally.ps1

@@ -0,0 +1,13 @@
+#!/usr/bin/env pwsh
+#requires -version 4
+
+# This script packages, installs and creates a template to help with rapid iteration in the templating area.
+[CmdletBinding(PositionalBinding = $false)]
+param()
+
+Set-StrictMode -Version 2
+$ErrorActionPreference = 'Stop'
+
+. $PSScriptRoot\Test-Template.ps1
+
+Test-Template "blazorwasm" "blazorwasm" "Microsoft.AspnetCore.Blazor.Templates.3.1.0-dev.nupkg" $false