title: serving gzipped files on Firebase Hosting
body: <p>I am interested in serving gzipped html/css/js files using Firebase Hosting.  I tried setting the Content-Encoding header in firebase.json, but it errors on deploy.</p>
  
  <p>purportedly, the only headers you can set include: Cache-Control,Access-Control-Allow-Origin,X-UA-Compatible,X-Content-Type-Options,X-Frame-Options,X-XSS-Protection</p>
  
  <p>any ideas out there?</p>