title: How to customise Azure Web App 403, 503 error pages?
body: <p>I am at a loss as to how to present a custom error page, with professional branding, for errors covering:</p>
  
  <pre><code>403 - Wep App stopped - currently get blue page with Azure text.
  503 - Service Unavailable - currently get white page with "service unavailable"
  </code></pre>
  
  <p>I have tried to use CloudFlare custom error pages, but this does not work. For a 403, traffic still gets routed throught to Azure, where it gets the standard Azure 403 Page.</p>
  
  <p>Must be possible?</p>