serving gzipped files on Firebase Hosting

Question

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.

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

any ideas out there?

Answer 1

By default, Firebase Hosting already gzips all of your files. Here, for example, are the response headers for a css file I have hosted on firebase. Note the Content-Encoding header:

Accept-Ranges:bytes
Cache-Control:max-age=7178000
Connection:keep-alive
Content-Encoding:gzip
Content-Length:3483
Content-Type:text/css; charset=utf-8
Date:Sun, 10 Jan 2016 02:09:57 GMT
ETag:"4c94283e07340e9cc0237fc2a349c94d"
Last-Modified:Sun, 10 Jan 2016 00:10:31 GMT
Server:nginx
Strict-Transport-Security:max-age=31556926; includeSubDomains; preload
Vary:Accept-Encoding
Via:1.1 varnish
X-Cache:HIT
X-Cache-Hits:1
X-Powered-By:Express
X-Served-By:cache-lax1432-LAX