title: Static HTML Azure web site behind Azure AD results in 'You do not have permission to view this directory or page.'
body: <p>I have an azure web app with nothing but .HTML and .CSS files - there is no code of any kind.</p>
  
  <p>Azure AD authentication is enabled.</p>
  
  <p>I am able to visit the site URL, get redirected for authentication and I get in just fine.</p>
  
  <p>Everyone else gets sent to this page after login:</p>
  
  <p><code>https://myurl.com/.auth/login/aad/callback</code></p>
  
  <p>and they get a 401 error on the browser:</p>
  
  <p><code>You do not have permission to view this directory or page.</code></p>
  
  <p>Why is it working for me, and not everyone else who authenticates?</p>
  
  <p>Is there somewhere I need to tell Azure Web Apps that I want all the files to be available to any authenticated user?</p>