title: UWP PWA: Subdomain as start page
body: <p>I am trying to publish my PWA as a UWP app but I have trouble with the subdomain, it's hosted on.</p>
  
  <p>E.g. when I set <a href="https://example.com/" rel="nofollow noreferrer">https://example.com/</a> as StartPage it perfectly works but when using <a href="https://sub.example.com/" rel="nofollow noreferrer">https://sub.example.com/</a> it keeps showing the startup screen (app logo).</p>
  
  <p>Both domains contain almost the same source code and in MS Edge, both work.</p>
  
  <p>Package.appxmanifest:</p>
  
  <pre><code>&lt;Application Id="App" StartPage="https://sub.example.com/"&gt;
  </code></pre>
  
  <p>How can this be fixed?</p>