title: Azure function app reading from App Settings not working
body: <p>I have an Azure Function App that I am attempting to secure with OKTA.
  In the root of my function app I have an auth.json file and I am replacing the Client Id etc with settings in my App Settings..except they arent replacing. It is keeping the literal values.
  <a href="https://i.stack.imgur.com/48Jfj.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/48Jfj.png" alt="enter image description here" /></a></p>
  <p>I am wanting to reference the item &quot;MYSECRET&quot;.</p>
  <p>This is the content of my auth.json that lives in the root of the Function APP:
  <a href="https://i.stack.imgur.com/4bhj6.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/4bhj6.png" alt="enter image description here" /></a></p>
  <p>For Line 15 I have attempted both:</p>
  <ul>
  <li><p>&quot;%MYSECRET%&quot;</p>
  </li>
  <li><p>&quot;MYSECRET&quot;</p>
  </li>
  </ul>
  <p>But I am getting the literal value &quot;MYSECRET&quot; rather than the value behind it, &quot;1234&quot;. Can this be done?</p>