Set Vary: Accept-Encoding Header (nginx)

Question

I have an nginx server and can\'t seem to find any information on how to send Vary: Accept-Encoding headers for CSS and JS files. Does anyone have info about this?

Thank

Answer 1

If you've tried the other answers and are still seeing vary off (e.g. if you are testing speed of your page using GTMetrix), the following might help:

Make sure all your gzip_types are also set in /etc/nginx/nginx.conf http section.

The server block in /etc/nginx/sites-available/* is one place where you can set the vary header and gzip_types, but depending on how you have your site setup you may be processing and returning files before they reach that bit of config.

In /etc/nginx/nginx.conf you will find an 'http' section - in here, there is also a gzip_types and gzip_vary.

For me - CSS and JS are static files and were being served up before hitting the (wordpress) nginx sites-available file (I have varnish in front of it).

So adding the full list of gzip_types to the http section in nginx.conf fixed my issue.