title: Firebase hosting serve gzip file instead of content
body: <p>We are using firebase solutions to host a website.</p>
  
  <p>We are having an issue with static file in firebase hosting. We are trying to serve apple-app-site-association as a "regular file" (content type : text plain or json) but, when I enter mysite.com/apple-app-site-association in a browser => my browser download a file gzipped.
  In <a href="http://localhost:5000/apple-app-site-association" rel="nofollow noreferrer">http://localhost:5000/apple-app-site-association</a>, it is working properly. Is firebase.json rewrite rule working in local mode ?</p>
  
  <p>What can we do?</p>
  
  <p>For example on this website <a href="http://fr.vestiairecollective.com/apple-app-site-association" rel="nofollow noreferrer">http://fr.vestiairecollective.com/apple-app-site-association</a>, the apple-app-site-association is readable directly in browser.</p>
  
  <p>A the end, it seems that apple devices does not understand the file and then deeplinking is not working.</p>