title: Can I serve create-react-app assets from a relative path
body: <p>Presently building my create-react-app build generates references to assets as absolute paths ie:</p>
  
  <pre><code>/static/js/main.12345.js
  </code></pre>
  
  <p>I want to serve from a variable subdirectory which could be:</p>
  
  <p>/pre-prod or /prod</p>
  
  <p>So setting "homepage" in package.json will not work as the homepage is dependent on the runtime environment.</p>
  
  <p>I'd like to generate the asset references like so:</p>
  
  <pre><code>static/js/main.12345.js
  </code></pre>
  
  <p>And I'd prefer to do it without ejecting. Is that possible? I have looked at the docs and googled etc and do not see an answer.</p>