title: Spinnaker base-url doesn't working by URL path setting
body: <p>I try to set URL Path to spin-gate base-url at spinnaker.</p>
  
  <p><code>hal config security api edit --override-base-url http://example.com/api</code></p>
  
  <p>And now, I accessed spinnaker ui.</p>
  
  <p>but it doesn’t work at 
  <code>http://example.com/api/credentials</code>
  and
  <code>http://example.com/api/webhook/preconfigured</code> API. </p>
  
  <p>It returned 404 error. Can you tell me why?
  <a href="https://i.stack.imgur.com/yjR8Z.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/yjR8Z.png" alt="Browser Inspect - Screenshot"></a></p>