title: Issues with SQL Alias in ConnectionString in appsettings.json
body: <p>In my appsettings.json, when I use this snippet:</p>
  
  <pre><code>"ConnectionStrings": {
      "CssDatabase": "Server=BLUEJAY\\MSSQLSERVER2014;Database=CSS;Trusted_Connection=True;" 
  }
  </code></pre>
  
  <p>I can connect to the db as expected... no issues.</p>
  
  <p>However, when I change that to use the SQL Alias (CSSDB), like so:</p>
  
  <pre><code>"ConnectionStrings": {
      "CssDatabase": "Server=CSSDB;Database=CSS;Trusted_Connection=True;" 
  }
  </code></pre>
  
  <p>It is properly configured since I can use this SQL Alias in SSMS to connect to DB without an issue.</p>
  
  <p>This returns:</p>
  
  <pre><code>The server was not found or was not accessible. Verify that the
  instance name is correct and that SQL Server is configured to allow
  remote connections. (provider: Named Pipes Provider, error: 40 -
  Could not open a connection to SQL Server) ---&gt;
  System.ComponentModel.Win32Exception: The network path was not found
  </code></pre>
  
  <p>I am using <code>Microsoft.EntityFrameworkCore</code>.</p>